codata/
constants.rs

1// Generated from CODATA 2022 constants data
2// Source: https://physics.nist.gov/cuu/Constants/Table/allascii.txt
3
4#![allow(clippy::excessive_precision)]
5
6/// A physical constant value with its uncertainty and unit.
7#[derive(Debug, Clone, Copy, PartialEq)]
8pub struct Constant {
9    pub value: f64,
10    pub uncertainty: f64,
11    pub unit: &'static str,
12}
13
14/// alpha particle-electron mass ratio
15/// Uncertainty: 0.00000017
16pub const ALPHA_PARTICLE_ELECTRON_MASS_RATIO: f64 = 7_294.299_541_710_000_09;
17
18/// alpha particle mass
19/// Unit: kg
20/// Uncertainty: 0.0000000021e-27
21pub const ALPHA_PARTICLE_MASS_SI: f64 = 6.644_657_344_999_999_81e-27;
22/// alpha particle mass (CGS)
23pub const ALPHA_PARTICLE_MASS_CGS: f64 = 6.644_657_344_999_999_13e-24;
24pub const ALPHA_PARTICLE_MASS: f64 = ALPHA_PARTICLE_MASS_SI;
25
26/// alpha particle mass energy equivalent
27/// Unit: J
28/// Uncertainty: 0.0000000019e-10
29pub const ALPHA_PARTICLE_MASS_ENERGY_EQUIVALENT_SI: f64 = 5.971_920_199_700_000_05e-10;
30/// alpha particle mass energy equivalent (CGS)
31pub const ALPHA_PARTICLE_MASS_ENERGY_EQUIVALENT_CGS: f64 = 0.005_971_920_199_699_999_95;
32pub const ALPHA_PARTICLE_MASS_ENERGY_EQUIVALENT: f64 = ALPHA_PARTICLE_MASS_ENERGY_EQUIVALENT_SI;
33
34/// alpha particle mass energy equivalent in `MeV`
35/// Unit: `MeV`
36/// Uncertainty: 0.0000012
37pub const ALPHA_PARTICLE_MASS_ENERGY_EQUIVALENT_IN_MEV: f64 = 3_727.379_411_800_000_07;
38
39/// alpha particle mass in u
40/// Unit: u
41/// Uncertainty: 0.000000000062
42pub const ALPHA_PARTICLE_MASS_IN_U: f64 = 4.001_506_179_128_999_64;
43
44/// alpha particle molar mass
45/// Unit: kg mol^-1
46/// Uncertainty: 0.0000000012e-3
47pub const ALPHA_PARTICLE_MOLAR_MASS_SI: f64 = 0.004_001_506_183_300_000_34;
48/// alpha particle molar mass (CGS)
49pub const ALPHA_PARTICLE_MOLAR_MASS_CGS: f64 = 4.001_506_183_300_000_07;
50pub const ALPHA_PARTICLE_MOLAR_MASS: f64 = ALPHA_PARTICLE_MOLAR_MASS_SI;
51
52/// alpha particle-proton mass ratio
53/// Uncertainty: 0.000000000070
54pub const ALPHA_PARTICLE_PROTON_MASS_RATIO: f64 = 3.972_599_690_252_000_22;
55
56/// alpha particle relative atomic mass
57/// Uncertainty: 0.000000000062
58pub const ALPHA_PARTICLE_RELATIVE_ATOMIC_MASS: f64 = 4.001_506_179_128_999_64;
59
60/// alpha particle rms charge radius
61/// Unit: m
62/// Uncertainty: 0.0021e-15
63pub const ALPHA_PARTICLE_RMS_CHARGE_RADIUS_SI: f64 = 1.678_499_999_999_999_96e-15;
64/// alpha particle rms charge radius (CGS)
65pub const ALPHA_PARTICLE_RMS_CHARGE_RADIUS_CGS: f64 = 1.678_499_999_999_999_87e-13;
66pub const ALPHA_PARTICLE_RMS_CHARGE_RADIUS: f64 = ALPHA_PARTICLE_RMS_CHARGE_RADIUS_SI;
67
68/// Angstrom star
69/// Unit: m
70/// Uncertainty: 0.00000090e-10
71pub const ANGSTROM_STAR_SI: f64 = 1.000_014_949_999_999_94e-10;
72/// Angstrom star (CGS)
73pub const ANGSTROM_STAR_CGS: f64 = 1.000_014_949_999_999_99e-08;
74pub const ANGSTROM_STAR: f64 = ANGSTROM_STAR_SI;
75
76/// atomic mass constant
77/// Unit: kg
78/// Uncertainty: 0.00000000052e-27
79pub const ATOMIC_MASS_CONSTANT_SI: f64 = 1.660_539_068_919_999_93e-27;
80/// atomic mass constant (CGS)
81pub const ATOMIC_MASS_CONSTANT_CGS: f64 = 1.660_539_068_920_000_11e-24;
82pub const ATOMIC_MASS_CONSTANT: f64 = ATOMIC_MASS_CONSTANT_SI;
83
84/// atomic mass constant energy equivalent
85/// Unit: J
86/// Uncertainty: 0.00000000046e-10
87pub const ATOMIC_MASS_CONSTANT_ENERGY_EQUIVALENT_SI: f64 = 1.492_418_087_680_000_05e-10;
88/// atomic mass constant energy equivalent (CGS)
89pub const ATOMIC_MASS_CONSTANT_ENERGY_EQUIVALENT_CGS: f64 = 0.001_492_418_087_680_000_11;
90pub const ATOMIC_MASS_CONSTANT_ENERGY_EQUIVALENT: f64 = ATOMIC_MASS_CONSTANT_ENERGY_EQUIVALENT_SI;
91
92/// atomic mass constant energy equivalent in `MeV`
93/// Unit: `MeV`
94/// Uncertainty: 0.00000029
95pub const ATOMIC_MASS_CONSTANT_ENERGY_EQUIVALENT_IN_MEV: f64 = 931.494_103_719_999_998;
96
97/// atomic mass unit-electron volt relationship
98/// Unit: eV
99/// Uncertainty: 0.0000000029e8
100pub const ATOMIC_MASS_UNIT_ELECTRON_VOLT_RELATIONSHIP: f64 = 931_494_103.720_000_029;
101
102/// atomic mass unit-hartree relationship
103/// Unit: `E_h`
104/// Uncertainty: 0.0000000011e7
105pub const ATOMIC_MASS_UNIT_HARTREE_RELATIONSHIP: f64 = 34_231_776.921_999_998_4;
106
107/// atomic mass unit-hertz relationship
108/// Unit: Hz
109/// Uncertainty: 0.00000000070e23
110pub const ATOMIC_MASS_UNIT_HERTZ_RELATIONSHIP: f64 = 2.252_342_721_849_999_96e+23;
111
112/// atomic mass unit-inverse meter relationship
113/// Unit: m^-1
114/// Uncertainty: 0.0000000023e14
115pub const ATOMIC_MASS_UNIT_INVERSE_METER_RELATIONSHIP_SI: f64 = 751_300_662_090_000.0;
116/// atomic mass unit-inverse meter relationship (CGS)
117pub const ATOMIC_MASS_UNIT_INVERSE_METER_RELATIONSHIP_CGS: f64 = 7_513_006_620_900.0;
118pub const ATOMIC_MASS_UNIT_INVERSE_METER_RELATIONSHIP: f64 = ATOMIC_MASS_UNIT_INVERSE_METER_RELATIONSHIP_SI;
119
120/// atomic mass unit-joule relationship
121/// Unit: J
122/// Uncertainty: 0.00000000046e-10
123pub const ATOMIC_MASS_UNIT_JOULE_RELATIONSHIP_SI: f64 = 1.492_418_087_680_000_05e-10;
124/// atomic mass unit-joule relationship (CGS)
125pub const ATOMIC_MASS_UNIT_JOULE_RELATIONSHIP_CGS: f64 = 0.001_492_418_087_680_000_11;
126pub const ATOMIC_MASS_UNIT_JOULE_RELATIONSHIP: f64 = ATOMIC_MASS_UNIT_JOULE_RELATIONSHIP_SI;
127
128/// atomic mass unit-kelvin relationship
129/// Unit: K
130/// Uncertainty: 0.00000000034e13
131pub const ATOMIC_MASS_UNIT_KELVIN_RELATIONSHIP: f64 = 10_809_540_206_700.0;
132
133/// atomic mass unit-kilogram relationship
134/// Unit: kg
135/// Uncertainty: 0.00000000052e-27
136pub const ATOMIC_MASS_UNIT_KILOGRAM_RELATIONSHIP_SI: f64 = 1.660_539_068_919_999_93e-27;
137/// atomic mass unit-kilogram relationship (CGS)
138pub const ATOMIC_MASS_UNIT_KILOGRAM_RELATIONSHIP_CGS: f64 = 1.660_539_068_920_000_11e-24;
139pub const ATOMIC_MASS_UNIT_KILOGRAM_RELATIONSHIP: f64 = ATOMIC_MASS_UNIT_KILOGRAM_RELATIONSHIP_SI;
140
141/// atomic unit of 1st hyperpolarizability
142/// Unit: C^3 m^3 J^-2
143/// Uncertainty: 0.0000000015e-53
144pub const ATOMIC_UNIT_OF_1ST_HYPERPOLARIZABILITY_SI: f64 = 3.206_361_299_599_999_94e-53;
145/// atomic unit of 1st hyperpolarizability (CGS)
146pub const ATOMIC_UNIT_OF_1ST_HYPERPOLARIZABILITY_CGS: f64 = 3.206_361_299_599_999_92e-61;
147pub const ATOMIC_UNIT_OF_1ST_HYPERPOLARIZABILITY: f64 = ATOMIC_UNIT_OF_1ST_HYPERPOLARIZABILITY_SI;
148
149/// atomic unit of 2nd hyperpolarizability
150/// Unit: C^4 m^4 J^-3
151/// Uncertainty: 0.0000000039e-65
152pub const ATOMIC_UNIT_OF_2ND_HYPERPOLARIZABILITY_SI: f64 = 6.235_379_973_500_000_3e-65;
153/// atomic unit of 2nd hyperpolarizability (CGS)
154pub const ATOMIC_UNIT_OF_2ND_HYPERPOLARIZABILITY_CGS: f64 = 6.235_379_973_499_999_87e-78;
155pub const ATOMIC_UNIT_OF_2ND_HYPERPOLARIZABILITY: f64 = ATOMIC_UNIT_OF_2ND_HYPERPOLARIZABILITY_SI;
156
157/// atomic unit of action
158/// Unit: J s
159/// Uncertainty: (exact)
160pub const ATOMIC_UNIT_OF_ACTION_SI: f64 = 1.054_571_816_999_999_99e-34;
161/// atomic unit of action (CGS)
162pub const ATOMIC_UNIT_OF_ACTION_CGS: f64 = 1.054_571_816_999_999_96e-27;
163pub const ATOMIC_UNIT_OF_ACTION: f64 = ATOMIC_UNIT_OF_ACTION_SI;
164
165/// atomic unit of charge
166/// Unit: C
167/// Uncertainty: (exact)
168pub const ATOMIC_UNIT_OF_CHARGE: f64 = 1.602_176_633_999_999_89e-19;
169
170/// atomic unit of charge density
171/// Unit: C m^-3
172/// Uncertainty: 0.00000000051e12
173pub const ATOMIC_UNIT_OF_CHARGE_DENSITY_SI: f64 = 1_081_202_386_770.0;
174/// atomic unit of charge density (CGS)
175pub const ATOMIC_UNIT_OF_CHARGE_DENSITY_CGS: f64 = 1_081_202.386_769_999_98;
176pub const ATOMIC_UNIT_OF_CHARGE_DENSITY: f64 = ATOMIC_UNIT_OF_CHARGE_DENSITY_SI;
177
178/// atomic unit of current
179/// Unit: A
180/// Uncertainty: 0.0000000000072e-3
181pub const ATOMIC_UNIT_OF_CURRENT: f64 = 0.006_623_618_237_508_200_13;
182
183/// atomic unit of electric dipole mom.
184/// Unit: C m
185/// Uncertainty: 0.0000000013e-30
186pub const ATOMIC_UNIT_OF_ELECTRIC_DIPOLE_MOM_SI: f64 = 8.478_353_619_800_000_69e-30;
187/// atomic unit of electric dipole mom. (CGS)
188pub const ATOMIC_UNIT_OF_ELECTRIC_DIPOLE_MOM_CGS: f64 = 8.478_353_619_800_000_97e-28;
189pub const ATOMIC_UNIT_OF_ELECTRIC_DIPOLE_MOM: f64 = ATOMIC_UNIT_OF_ELECTRIC_DIPOLE_MOM_SI;
190
191/// atomic unit of electric field
192/// Unit: V m^-1
193/// Uncertainty: 0.00000000080e11
194pub const ATOMIC_UNIT_OF_ELECTRIC_FIELD_SI: f64 = 514_220_675_112.0;
195/// atomic unit of electric field (CGS)
196pub const ATOMIC_UNIT_OF_ELECTRIC_FIELD_CGS: f64 = 5_142_206_751.119_999_89;
197pub const ATOMIC_UNIT_OF_ELECTRIC_FIELD: f64 = ATOMIC_UNIT_OF_ELECTRIC_FIELD_SI;
198
199/// atomic unit of electric field gradient
200/// Unit: V m^-2
201/// Uncertainty: 0.0000000030e21
202pub const ATOMIC_UNIT_OF_ELECTRIC_FIELD_GRADIENT_SI: f64 = 9.717_362_442_400_000_11e+21;
203/// atomic unit of electric field gradient (CGS)
204pub const ATOMIC_UNIT_OF_ELECTRIC_FIELD_GRADIENT_CGS: f64 = 971_736_244_240_000_000.0;
205pub const ATOMIC_UNIT_OF_ELECTRIC_FIELD_GRADIENT: f64 = ATOMIC_UNIT_OF_ELECTRIC_FIELD_GRADIENT_SI;
206
207/// atomic unit of electric polarizability
208/// Unit: C^2 m^2 J^-1
209/// Uncertainty: 0.00000000051e-41
210pub const ATOMIC_UNIT_OF_ELECTRIC_POLARIZABILITY_SI: f64 = 1.648_777_272_12e-41;
211/// atomic unit of electric polarizability (CGS)
212pub const ATOMIC_UNIT_OF_ELECTRIC_POLARIZABILITY_CGS: f64 = 1.648_777_272_120_000_12e-44;
213pub const ATOMIC_UNIT_OF_ELECTRIC_POLARIZABILITY: f64 = ATOMIC_UNIT_OF_ELECTRIC_POLARIZABILITY_SI;
214
215/// atomic unit of electric potential
216/// Unit: V
217/// Uncertainty: 0.000000000030
218pub const ATOMIC_UNIT_OF_ELECTRIC_POTENTIAL: f64 = 27.211_386_245_981_000_1;
219
220/// atomic unit of electric quadrupole mom.
221/// Unit: C m^2
222/// Uncertainty: 0.0000000014e-40
223pub const ATOMIC_UNIT_OF_ELECTRIC_QUADRUPOLE_MOM_SI: f64 = 4.486_551_518_500_000_02e-40;
224/// atomic unit of electric quadrupole mom. (CGS)
225pub const ATOMIC_UNIT_OF_ELECTRIC_QUADRUPOLE_MOM_CGS: f64 = 4.486_551_518_500_000_3e-36;
226pub const ATOMIC_UNIT_OF_ELECTRIC_QUADRUPOLE_MOM: f64 = ATOMIC_UNIT_OF_ELECTRIC_QUADRUPOLE_MOM_SI;
227
228/// atomic unit of energy
229/// Unit: J
230/// Uncertainty: 0.0000000000048e-18
231pub const ATOMIC_UNIT_OF_ENERGY_SI: f64 = 4.359_744_722_205_999_89e-18;
232/// atomic unit of energy (CGS)
233pub const ATOMIC_UNIT_OF_ENERGY_CGS: f64 = 4.359_744_722_205_999_88e-11;
234pub const ATOMIC_UNIT_OF_ENERGY: f64 = ATOMIC_UNIT_OF_ENERGY_SI;
235
236/// atomic unit of force
237/// Unit: N
238/// Uncertainty: 0.0000000013e-8
239pub const ATOMIC_UNIT_OF_FORCE_SI: f64 = 8.238_723_503_800_000_3e-08;
240/// atomic unit of force (CGS)
241pub const ATOMIC_UNIT_OF_FORCE_CGS: f64 = 0.008_238_723_503_799_999_86;
242pub const ATOMIC_UNIT_OF_FORCE: f64 = ATOMIC_UNIT_OF_FORCE_SI;
243
244/// atomic unit of length
245/// Unit: m
246/// Uncertainty: 0.00000000082e-11
247pub const ATOMIC_UNIT_OF_LENGTH_SI: f64 = 5.291_772_105_439_999_77e-11;
248/// atomic unit of length (CGS)
249pub const ATOMIC_UNIT_OF_LENGTH_CGS: f64 = 5.291_772_105_440_000_1e-09;
250pub const ATOMIC_UNIT_OF_LENGTH: f64 = ATOMIC_UNIT_OF_LENGTH_SI;
251
252/// atomic unit of mag. dipole mom.
253/// Unit: J T^-1
254/// Uncertainty: 0.00000000058e-23
255pub const ATOMIC_UNIT_OF_MAG_DIPOLE_MOM_SI: f64 = 1.854_802_013_149_999_92e-23;
256/// atomic unit of mag. dipole mom. (CGS)
257pub const ATOMIC_UNIT_OF_MAG_DIPOLE_MOM_CGS: f64 = 1.854_802_013_149_999_94e-20;
258pub const ATOMIC_UNIT_OF_MAG_DIPOLE_MOM: f64 = ATOMIC_UNIT_OF_MAG_DIPOLE_MOM_SI;
259
260/// atomic unit of mag. flux density
261/// Unit: T
262/// Uncertainty: 0.00000000073e5
263pub const ATOMIC_UNIT_OF_MAG_FLUX_DENSITY_SI: f64 = 235_051.757_076_999_987;
264/// atomic unit of mag. flux density (CGS)
265pub const ATOMIC_UNIT_OF_MAG_FLUX_DENSITY_CGS: f64 = 2_350_517_570.769_999_98;
266pub const ATOMIC_UNIT_OF_MAG_FLUX_DENSITY: f64 = ATOMIC_UNIT_OF_MAG_FLUX_DENSITY_SI;
267
268/// atomic unit of magnetizability
269/// Unit: J T^-2
270/// Uncertainty: 0.0000000049e-29
271pub const ATOMIC_UNIT_OF_MAGNETIZABILITY_SI: f64 = 7.891_036_579_399_999_45e-29;
272/// atomic unit of magnetizability (CGS)
273pub const ATOMIC_UNIT_OF_MAGNETIZABILITY_CGS: f64 = 7.891_036_579_400_000_01e-30;
274pub const ATOMIC_UNIT_OF_MAGNETIZABILITY: f64 = ATOMIC_UNIT_OF_MAGNETIZABILITY_SI;
275
276/// atomic unit of mass
277/// Unit: kg
278/// Uncertainty: 0.0000000028e-31
279pub const ATOMIC_UNIT_OF_MASS_SI: f64 = 9.109_383_713_899_999_82e-31;
280/// atomic unit of mass (CGS)
281pub const ATOMIC_UNIT_OF_MASS_CGS: f64 = 9.109_383_713_899_999_97e-28;
282pub const ATOMIC_UNIT_OF_MASS: f64 = ATOMIC_UNIT_OF_MASS_SI;
283
284/// atomic unit of momentum
285/// Unit: kg m s^-1
286/// Uncertainty: 0.00000000031e-24
287pub const ATOMIC_UNIT_OF_MOMENTUM_SI: f64 = 1.992_851_915_449_999_82e-24;
288/// atomic unit of momentum (CGS)
289pub const ATOMIC_UNIT_OF_MOMENTUM_CGS: f64 = 1.992_851_915_449_999_73e-19;
290pub const ATOMIC_UNIT_OF_MOMENTUM: f64 = ATOMIC_UNIT_OF_MOMENTUM_SI;
291
292/// atomic unit of permittivity
293/// Unit: F m^-1
294/// Uncertainty: 0.00000000017e-10
295pub const ATOMIC_UNIT_OF_PERMITTIVITY_SI: f64 = 1.112_650_056_200_000_06e-10;
296/// atomic unit of permittivity (CGS)
297pub const ATOMIC_UNIT_OF_PERMITTIVITY_CGS: f64 = 1.112_650_056_200_000_14e-12;
298pub const ATOMIC_UNIT_OF_PERMITTIVITY: f64 = ATOMIC_UNIT_OF_PERMITTIVITY_SI;
299
300/// atomic unit of time
301/// Unit: s
302/// Uncertainty: 0.0000000000026e-17
303pub const ATOMIC_UNIT_OF_TIME: f64 = 2.418_884_326_586_399_85e-17;
304
305/// atomic unit of velocity
306/// Unit: m s^-1
307/// Uncertainty: 0.00000000034e6
308pub const ATOMIC_UNIT_OF_VELOCITY_SI: f64 = 2_187_691.262_159_999_93;
309/// atomic unit of velocity (CGS)
310pub const ATOMIC_UNIT_OF_VELOCITY_CGS: f64 = 218_769_126.215_999_991;
311pub const ATOMIC_UNIT_OF_VELOCITY: f64 = ATOMIC_UNIT_OF_VELOCITY_SI;
312
313/// Avogadro constant
314/// Unit: mol^-1
315/// Uncertainty: (exact)
316pub const AVOGADRO_CONSTANT: f64 = 6.022_140_759_999_999_87e+23;
317
318/// Bohr magneton
319/// Unit: J T^-1
320/// Uncertainty: 0.0000000029e-24
321pub const BOHR_MAGNETON_SI: f64 = 9.274_010_065_699_999_92e-24;
322/// Bohr magneton (CGS)
323pub const BOHR_MAGNETON_CGS: f64 = 9.274_010_065_699_999_26e-21;
324pub const BOHR_MAGNETON: f64 = BOHR_MAGNETON_SI;
325
326/// Bohr magneton in eV/T
327/// Unit: eV T^-1
328/// Uncertainty: 0.0000000018e-5
329pub const BOHR_MAGNETON_IN_EV_OVER_T_SI: f64 = 5.788_381_798_199_999_99e-05;
330/// Bohr magneton in eV/T (CGS)
331pub const BOHR_MAGNETON_IN_EV_OVER_T_CGS: f64 = 5.788_381_798_199_999_96e-09;
332pub const BOHR_MAGNETON_IN_EV_OVER_T: f64 = BOHR_MAGNETON_IN_EV_OVER_T_SI;
333
334/// Bohr magneton in Hz/T
335/// Unit: Hz T^-1
336/// Uncertainty: 0.00000000044e10
337pub const BOHR_MAGNETON_IN_HZ_OVER_T_SI: f64 = 13_996_244_917.100_000_4;
338/// Bohr magneton in Hz/T (CGS)
339pub const BOHR_MAGNETON_IN_HZ_OVER_T_CGS: f64 = 1_399_624.491_710_000_21;
340pub const BOHR_MAGNETON_IN_HZ_OVER_T: f64 = BOHR_MAGNETON_IN_HZ_OVER_T_SI;
341
342/// Bohr magneton in inverse meter per tesla
343/// Unit: m^-1 T^-1
344/// Uncertainty: 0.000000015
345pub const BOHR_MAGNETON_IN_INVERSE_METER_PER_TESLA_SI: f64 = 46.686_447_719_000_000_2;
346/// Bohr magneton in inverse meter per tesla (CGS)
347pub const BOHR_MAGNETON_IN_INVERSE_METER_PER_TESLA_CGS: f64 = 4.668_644_771_900_001_01e-05;
348pub const BOHR_MAGNETON_IN_INVERSE_METER_PER_TESLA: f64 = BOHR_MAGNETON_IN_INVERSE_METER_PER_TESLA_SI;
349
350/// Bohr magneton in K/T
351/// Unit: K T^-1
352/// Uncertainty: 0.00000000021
353pub const BOHR_MAGNETON_IN_K_OVER_T_SI: f64 = 0.671_713_814_720_000_024;
354/// Bohr magneton in K/T (CGS)
355pub const BOHR_MAGNETON_IN_K_OVER_T_CGS: f64 = 6.717_138_147_200_000_93e-05;
356pub const BOHR_MAGNETON_IN_K_OVER_T: f64 = BOHR_MAGNETON_IN_K_OVER_T_SI;
357
358/// Bohr radius
359/// Unit: m
360/// Uncertainty: 0.00000000082e-11
361pub const BOHR_RADIUS_SI: f64 = 5.291_772_105_439_999_77e-11;
362/// Bohr radius (CGS)
363pub const BOHR_RADIUS_CGS: f64 = 5.291_772_105_440_000_1e-09;
364pub const BOHR_RADIUS: f64 = BOHR_RADIUS_SI;
365
366/// Boltzmann constant
367/// Unit: J K^-1
368/// Uncertainty: (exact)
369pub const BOLTZMANN_CONSTANT_SI: f64 = 1.380_649_000_000_000_09e-23;
370/// Boltzmann constant (CGS)
371pub const BOLTZMANN_CONSTANT_CGS: f64 = 1.380_648_999_999_999_99e-16;
372pub const BOLTZMANN_CONSTANT: f64 = BOLTZMANN_CONSTANT_SI;
373
374/// Boltzmann constant in eV/K
375/// Unit: eV K^-1
376/// Uncertainty: (exact)
377pub const BOLTZMANN_CONSTANT_IN_EV_OVER_K: f64 = 8.617_333_262_000_000_06e-05;
378
379/// Boltzmann constant in Hz/K
380/// Unit: Hz K^-1
381/// Uncertainty: (exact)
382pub const BOLTZMANN_CONSTANT_IN_HZ_OVER_K: f64 = 20_836_619_120.0;
383
384/// Boltzmann constant in inverse meter per kelvin
385/// Unit: m^-1 K^-1
386/// Uncertainty: (exact)
387pub const BOLTZMANN_CONSTANT_IN_INVERSE_METER_PER_KELVIN_SI: f64 = 69.503_480_039_999_999_5;
388/// Boltzmann constant in inverse meter per kelvin (CGS)
389pub const BOLTZMANN_CONSTANT_IN_INVERSE_METER_PER_KELVIN_CGS: f64 = 0.695_034_800_399_999_986;
390pub const BOLTZMANN_CONSTANT_IN_INVERSE_METER_PER_KELVIN: f64 = BOLTZMANN_CONSTANT_IN_INVERSE_METER_PER_KELVIN_SI;
391
392/// characteristic impedance of vacuum
393/// Unit: ohm
394/// Uncertainty: 0.000000059
395pub const CHARACTERISTIC_IMPEDANCE_OF_VACUUM: f64 = 376.730_313_411_999_987;
396
397/// classical electron radius
398/// Unit: m
399/// Uncertainty: 0.0000000013e-15
400pub const CLASSICAL_ELECTRON_RADIUS_SI: f64 = 2.817_940_320_499_999_9e-15;
401/// classical electron radius (CGS)
402pub const CLASSICAL_ELECTRON_RADIUS_CGS: f64 = 2.817_940_320_499_999_83e-13;
403pub const CLASSICAL_ELECTRON_RADIUS: f64 = CLASSICAL_ELECTRON_RADIUS_SI;
404
405/// Compton wavelength
406/// Unit: m
407/// Uncertainty: 0.00000000076e-12
408pub const COMPTON_WAVELENGTH_SI: f64 = 2.426_310_235_380_000_03e-12;
409/// Compton wavelength (CGS)
410pub const COMPTON_WAVELENGTH_CGS: f64 = 2.426_310_235_380_000_24e-10;
411pub const COMPTON_WAVELENGTH: f64 = COMPTON_WAVELENGTH_SI;
412
413/// conductance quantum
414/// Unit: S
415/// Uncertainty: (exact)
416pub const CONDUCTANCE_QUANTUM: f64 = 7.748_091_729_000_000_37e-05;
417
418/// conventional value of ampere-90
419/// Unit: A
420/// Uncertainty: (exact)
421pub const CONVENTIONAL_VALUE_OF_AMPERE_90: f64 = 1.000_000_088_870_000_03;
422
423/// conventional value of coulomb-90
424/// Unit: C
425/// Uncertainty: (exact)
426pub const CONVENTIONAL_VALUE_OF_COULOMB_90: f64 = 1.000_000_088_870_000_03;
427
428/// conventional value of farad-90
429/// Unit: F
430/// Uncertainty: (exact)
431pub const CONVENTIONAL_VALUE_OF_FARAD_90: f64 = 0.999_999_982_199_999_971;
432
433/// conventional value of henry-90
434/// Unit: H
435/// Uncertainty: (exact)
436pub const CONVENTIONAL_VALUE_OF_HENRY_90: f64 = 1.000_000_017_789_999_92;
437
438/// conventional value of Josephson constant
439/// Unit: Hz V^-1
440/// Uncertainty: (exact)
441pub const CONVENTIONAL_VALUE_OF_JOSEPHSON_CONSTANT: f64 = 483_597_900_000_000.0;
442
443/// conventional value of ohm-90
444/// Unit: ohm
445/// Uncertainty: (exact)
446pub const CONVENTIONAL_VALUE_OF_OHM_90: f64 = 1.000_000_017_789_999_92;
447
448/// conventional value of volt-90
449/// Unit: V
450/// Uncertainty: (exact)
451pub const CONVENTIONAL_VALUE_OF_VOLT_90: f64 = 1.000_000_106_659_999_94;
452
453/// conventional value of von Klitzing constant
454/// Unit: ohm
455/// Uncertainty: (exact)
456pub const CONVENTIONAL_VALUE_OF_VON_KLITZING_CONSTANT: f64 = 25_812.807_000_000_000_7;
457
458/// conventional value of watt-90
459/// Unit: W
460/// Uncertainty: (exact)
461pub const CONVENTIONAL_VALUE_OF_WATT_90_SI: f64 = 1.000_000_195_529_999_97;
462/// conventional value of watt-90 (CGS)
463pub const CONVENTIONAL_VALUE_OF_WATT_90_CGS: f64 = 10_000_001.955_299_999_6;
464pub const CONVENTIONAL_VALUE_OF_WATT_90: f64 = CONVENTIONAL_VALUE_OF_WATT_90_SI;
465
466/// Copper x unit
467/// Unit: m
468/// Uncertainty: 0.00000028e-13
469pub const COPPER_X_UNIT_SI: f64 = 1.002_076_970_000_000_01e-13;
470/// Copper x unit (CGS)
471pub const COPPER_X_UNIT_CGS: f64 = 1.002_076_969_999_999_97e-11;
472pub const COPPER_X_UNIT: f64 = COPPER_X_UNIT_SI;
473
474/// deuteron-electron mag. mom. ratio
475/// Uncertainty: 0.000000012e-4
476pub const DEUTERON_ELECTRON_MAG_MOM_RATIO: f64 = -0.000_466_434_555_000_000_005;
477
478/// deuteron-electron mass ratio
479/// Uncertainty: 0.000000063
480pub const DEUTERON_ELECTRON_MASS_RATIO: f64 = 3_670.482_967_654_999_81;
481
482/// deuteron g factor
483/// Uncertainty: 0.0000000022
484pub const DEUTERON_G_FACTOR: f64 = 0.857_438_233_500_000_035;
485
486/// deuteron mag. mom.
487/// Unit: J T^-1
488/// Uncertainty: 0.000000011e-27
489pub const DEUTERON_MAG_MOM_SI: f64 = 4.330_735_086_999_999_71e-27;
490/// deuteron mag. mom. (CGS)
491pub const DEUTERON_MAG_MOM_CGS: f64 = 4.330_735_086_999_999_68e-24;
492pub const DEUTERON_MAG_MOM: f64 = DEUTERON_MAG_MOM_SI;
493
494/// deuteron mag. mom. to Bohr magneton ratio
495/// Uncertainty: 0.000000012e-4
496pub const DEUTERON_MAG_MOM_TO_BOHR_MAGNETON_RATIO: f64 = 0.000_466_975_456_800_000_014;
497
498/// deuteron mag. mom. to nuclear magneton ratio
499/// Uncertainty: 0.0000000022
500pub const DEUTERON_MAG_MOM_TO_NUCLEAR_MAGNETON_RATIO: f64 = 0.857_438_233_500_000_035;
501
502/// deuteron mass
503/// Unit: kg
504/// Uncertainty: 0.0000000010e-27
505pub const DEUTERON_MASS_SI: f64 = 3.343_583_776_800_000_06e-27;
506/// deuteron mass (CGS)
507pub const DEUTERON_MASS_CGS: f64 = 3.343_583_776_799_999_81e-24;
508pub const DEUTERON_MASS: f64 = DEUTERON_MASS_SI;
509
510/// deuteron mass energy equivalent
511/// Unit: J
512/// Uncertainty: 0.00000000094e-10
513pub const DEUTERON_MASS_ENERGY_EQUIVALENT_SI: f64 = 3.005_063_234_909_999_96e-10;
514/// deuteron mass energy equivalent (CGS)
515pub const DEUTERON_MASS_ENERGY_EQUIVALENT_CGS: f64 = 0.003_005_063_234_909_999_96;
516pub const DEUTERON_MASS_ENERGY_EQUIVALENT: f64 = DEUTERON_MASS_ENERGY_EQUIVALENT_SI;
517
518/// deuteron mass energy equivalent in `MeV`
519/// Unit: `MeV`
520/// Uncertainty: 0.00000058
521pub const DEUTERON_MASS_ENERGY_EQUIVALENT_IN_MEV: f64 = 1_875.612_945_000_000_08;
522
523/// deuteron mass in u
524/// Unit: u
525/// Uncertainty: 0.000000000015
526pub const DEUTERON_MASS_IN_U: f64 = 2.013_553_212_544_000_1;
527
528/// deuteron molar mass
529/// Unit: kg mol^-1
530/// Uncertainty: 0.00000000063e-3
531pub const DEUTERON_MOLAR_MASS_SI: f64 = 0.002_013_553_214_659_999_8;
532/// deuteron molar mass (CGS)
533pub const DEUTERON_MOLAR_MASS_CGS: f64 = 2.013_553_214_659_999_92;
534pub const DEUTERON_MOLAR_MASS: f64 = DEUTERON_MOLAR_MASS_SI;
535
536/// deuteron-neutron mag. mom. ratio
537/// Uncertainty: 0.00000011
538pub const DEUTERON_NEUTRON_MAG_MOM_RATIO: f64 = -0.448_206_519_999_999_997;
539
540/// deuteron-proton mag. mom. ratio
541/// Uncertainty: 0.00000000079
542pub const DEUTERON_PROTON_MAG_MOM_RATIO: f64 = 0.307_012_209_300_000_005;
543
544/// deuteron-proton mass ratio
545/// Uncertainty: 0.0000000000084
546pub const DEUTERON_PROTON_MASS_RATIO: f64 = 1.999_007_501_269_900_01;
547
548/// deuteron relative atomic mass
549/// Uncertainty: 0.000000000015
550pub const DEUTERON_RELATIVE_ATOMIC_MASS: f64 = 2.013_553_212_544_000_1;
551
552/// deuteron rms charge radius
553/// Unit: m
554/// Uncertainty: 0.00027e-15
555pub const DEUTERON_RMS_CHARGE_RADIUS_SI: f64 = 2.127_780_000_000_000_03e-15;
556/// deuteron rms charge radius (CGS)
557pub const DEUTERON_RMS_CHARGE_RADIUS_CGS: f64 = 2.127_780_000_000_000_1e-13;
558pub const DEUTERON_RMS_CHARGE_RADIUS: f64 = DEUTERON_RMS_CHARGE_RADIUS_SI;
559
560/// electron charge to mass quotient
561/// Unit: C kg^-1
562/// Uncertainty: 0.00000000055e11
563pub const ELECTRON_CHARGE_TO_MASS_QUOTIENT_SI: f64 = -175_882_000_838.0;
564/// electron charge to mass quotient (CGS)
565pub const ELECTRON_CHARGE_TO_MASS_QUOTIENT_CGS: f64 = -175_882_000.838;
566pub const ELECTRON_CHARGE_TO_MASS_QUOTIENT: f64 = ELECTRON_CHARGE_TO_MASS_QUOTIENT_SI;
567
568/// electron-deuteron mag. mom. ratio
569/// Uncertainty: 0.0000056
570pub const ELECTRON_DEUTERON_MAG_MOM_RATIO: f64 = -2_143.923_492_100_000_2;
571
572/// electron-deuteron mass ratio
573/// Uncertainty: 0.000000000047e-4
574pub const ELECTRON_DEUTERON_MASS_RATIO: f64 = 0.000_272_443_710_762_900_013;
575
576/// electron g factor
577/// Uncertainty: 0.00000000000036
578pub const ELECTRON_G_FACTOR: f64 = -2.002_319_304_360_919_98;
579
580/// electron gyromag. ratio
581/// Unit: s^-1 T^-1
582/// Uncertainty: 0.00000000055e11
583pub const ELECTRON_GYROMAG_RATIO_SI: f64 = 176_085_962_784.0;
584/// electron gyromag. ratio (CGS)
585pub const ELECTRON_GYROMAG_RATIO_CGS: f64 = 17_608_596.278_400_000_2;
586pub const ELECTRON_GYROMAG_RATIO: f64 = ELECTRON_GYROMAG_RATIO_SI;
587
588/// electron gyromag. ratio in MHz/T
589/// Unit: MHz T^-1
590/// Uncertainty: 0.0000087
591pub const ELECTRON_GYROMAG_RATIO_IN_MHZ_OVER_T_SI: f64 = 28_024.951_386_100_001_4;
592/// electron gyromag. ratio in MHz/T (CGS)
593pub const ELECTRON_GYROMAG_RATIO_IN_MHZ_OVER_T_CGS: f64 = 2.802_495_138_610_000_32;
594pub const ELECTRON_GYROMAG_RATIO_IN_MHZ_OVER_T: f64 = ELECTRON_GYROMAG_RATIO_IN_MHZ_OVER_T_SI;
595
596/// electron-helion mass ratio
597/// Uncertainty: 0.000000000053e-4
598pub const ELECTRON_HELION_MASS_RATIO: f64 = 0.000_181_954_307_464_899_989;
599
600/// electron mag. mom.
601/// Unit: J T^-1
602/// Uncertainty: 0.0000000029e-24
603pub const ELECTRON_MAG_MOM_SI: f64 = -9.284_764_691_700_000_03e-24;
604/// electron mag. mom. (CGS)
605pub const ELECTRON_MAG_MOM_CGS: f64 = -9.284_764_691_700_000_51e-21;
606pub const ELECTRON_MAG_MOM: f64 = ELECTRON_MAG_MOM_SI;
607
608/// electron mag. mom. anomaly
609/// Uncertainty: 0.00000000018e-3
610pub const ELECTRON_MAG_MOM_ANOMALY: f64 = 0.001_159_652_180_459_999_97;
611
612/// electron mag. mom. to Bohr magneton ratio
613/// Uncertainty: 0.00000000000018
614pub const ELECTRON_MAG_MOM_TO_BOHR_MAGNETON_RATIO: f64 = -1.001_159_652_180_459_99;
615
616/// electron mag. mom. to nuclear magneton ratio
617/// Uncertainty: 0.000000032
618pub const ELECTRON_MAG_MOM_TO_NUCLEAR_MAGNETON_RATIO: f64 = -1_838.281_971_876_999_93;
619
620/// electron mass
621/// Unit: kg
622/// Uncertainty: 0.0000000028e-31
623pub const ELECTRON_MASS_SI: f64 = 9.109_383_713_899_999_82e-31;
624/// electron mass (CGS)
625pub const ELECTRON_MASS_CGS: f64 = 9.109_383_713_899_999_97e-28;
626pub const ELECTRON_MASS: f64 = ELECTRON_MASS_SI;
627
628/// electron mass energy equivalent
629/// Unit: J
630/// Uncertainty: 0.0000000026e-14
631pub const ELECTRON_MASS_ENERGY_EQUIVALENT_SI: f64 = 8.187_105_788_000_000_12e-14;
632/// electron mass energy equivalent (CGS)
633pub const ELECTRON_MASS_ENERGY_EQUIVALENT_CGS: f64 = 8.187_105_787_999_999_96e-07;
634pub const ELECTRON_MASS_ENERGY_EQUIVALENT: f64 = ELECTRON_MASS_ENERGY_EQUIVALENT_SI;
635
636/// electron mass energy equivalent in `MeV`
637/// Unit: `MeV`
638/// Uncertainty: 0.00000000016
639pub const ELECTRON_MASS_ENERGY_EQUIVALENT_IN_MEV: f64 = 0.510_998_950_690_000_009;
640
641/// electron mass in u
642/// Unit: u
643/// Uncertainty: 0.000000000097e-4
644pub const ELECTRON_MASS_IN_U: f64 = 0.000_548_579_909_044_099_971;
645
646/// electron molar mass
647/// Unit: kg mol^-1
648/// Uncertainty: 0.0000000017e-7
649pub const ELECTRON_MOLAR_MASS_SI: f64 = 5.485_799_096_199_999_47e-07;
650/// electron molar mass (CGS)
651pub const ELECTRON_MOLAR_MASS_CGS: f64 = 0.000_548_579_909_619_999_976;
652pub const ELECTRON_MOLAR_MASS: f64 = ELECTRON_MOLAR_MASS_SI;
653
654/// electron-muon mag. mom. ratio
655/// Uncertainty: 0.0000046
656pub const ELECTRON_MUON_MAG_MOM_RATIO: f64 = 206.766_988_099_999_992;
657
658/// electron-muon mass ratio
659/// Uncertainty: 0.00000011e-3
660pub const ELECTRON_MUON_MASS_RATIO: f64 = 0.004_836_331_699_999_999_94;
661
662/// electron-neutron mag. mom. ratio
663/// Uncertainty: 0.00023
664pub const ELECTRON_NEUTRON_MAG_MOM_RATIO: f64 = 960.920_479_999_999_998;
665
666/// electron-neutron mass ratio
667/// Uncertainty: 0.0000000022e-4
668pub const ELECTRON_NEUTRON_MASS_RATIO: f64 = 0.000_543_867_344_160_000_048;
669
670/// electron-proton mag. mom. ratio
671/// Uncertainty: 0.00000019
672pub const ELECTRON_PROTON_MAG_MOM_RATIO: f64 = -658.210_687_890_000_031;
673
674/// electron-proton mass ratio
675/// Uncertainty: 0.000000000094e-4
676pub const ELECTRON_PROTON_MASS_RATIO: f64 = 0.000_544_617_021_488_900_022;
677
678/// electron relative atomic mass
679/// Uncertainty: 0.000000000097e-4
680pub const ELECTRON_RELATIVE_ATOMIC_MASS: f64 = 0.000_548_579_909_044_099_971;
681
682/// electron-tau mass ratio
683/// Uncertainty: 0.00019e-4
684pub const ELECTRON_TAU_MASS_RATIO: f64 = 0.000_287_584_999_999_999_978;
685
686/// electron to alpha particle mass ratio
687/// Uncertainty: 0.000000000032e-4
688pub const ELECTRON_TO_ALPHA_PARTICLE_MASS_RATIO: f64 = 0.000_137_093_355_473_299_989;
689
690/// electron to shielded helion mag. mom. ratio
691/// Uncertainty: 0.00000070
692pub const ELECTRON_TO_SHIELDED_HELION_MAG_MOM_RATIO: f64 = 864.058_239_859_999_958;
693
694/// electron to shielded proton mag. mom. ratio
695/// Uncertainty: 0.0000027
696pub const ELECTRON_TO_SHIELDED_PROTON_MAG_MOM_RATIO: f64 = -658.227_585_599_999_998;
697
698/// electron-triton mass ratio
699/// Uncertainty: 0.000000000068e-4
700pub const ELECTRON_TRITON_MASS_RATIO: f64 = 0.000_181_920_006_232_700_004;
701
702/// electron volt
703/// Unit: J
704/// Uncertainty: (exact)
705pub const ELECTRON_VOLT_SI: f64 = 1.602_176_633_999_999_89e-19;
706/// electron volt (CGS)
707pub const ELECTRON_VOLT_CGS: f64 = 1.602_176_633_999_999_93e-12;
708pub const ELECTRON_VOLT: f64 = ELECTRON_VOLT_SI;
709
710/// electron volt-atomic mass unit relationship
711/// Unit: u
712/// Uncertainty: 0.00000000033e-9
713pub const ELECTRON_VOLT_ATOMIC_MASS_UNIT_RELATIONSHIP: f64 = 1.073_544_100_829_999_91e-09;
714
715/// electron volt-hartree relationship
716/// Unit: `E_h`
717/// Uncertainty: 0.0000000000040e-2
718pub const ELECTRON_VOLT_HARTREE_RELATIONSHIP: f64 = 0.036_749_322_175_664_997_4;
719
720/// electron volt-hertz relationship
721/// Unit: Hz
722/// Uncertainty: (exact)
723pub const ELECTRON_VOLT_HERTZ_RELATIONSHIP: f64 = 241_798_924_200_000.0;
724
725/// electron volt-inverse meter relationship
726/// Unit: m^-1
727/// Uncertainty: (exact)
728pub const ELECTRON_VOLT_INVERSE_METER_RELATIONSHIP_SI: f64 = 806_554.393_700_000_015;
729/// electron volt-inverse meter relationship (CGS)
730pub const ELECTRON_VOLT_INVERSE_METER_RELATIONSHIP_CGS: f64 = 8_065.543_937_000_000_37;
731pub const ELECTRON_VOLT_INVERSE_METER_RELATIONSHIP: f64 = ELECTRON_VOLT_INVERSE_METER_RELATIONSHIP_SI;
732
733/// electron volt-joule relationship
734/// Unit: J
735/// Uncertainty: (exact)
736pub const ELECTRON_VOLT_JOULE_RELATIONSHIP_SI: f64 = 1.602_176_633_999_999_89e-19;
737/// electron volt-joule relationship (CGS)
738pub const ELECTRON_VOLT_JOULE_RELATIONSHIP_CGS: f64 = 1.602_176_633_999_999_93e-12;
739pub const ELECTRON_VOLT_JOULE_RELATIONSHIP: f64 = ELECTRON_VOLT_JOULE_RELATIONSHIP_SI;
740
741/// electron volt-kelvin relationship
742/// Unit: K
743/// Uncertainty: (exact)
744pub const ELECTRON_VOLT_KELVIN_RELATIONSHIP: f64 = 11_604.518_120_000_000_6;
745
746/// electron volt-kilogram relationship
747/// Unit: kg
748/// Uncertainty: (exact)
749pub const ELECTRON_VOLT_KILOGRAM_RELATIONSHIP_SI: f64 = 1.782_661_920_999_999_95e-36;
750/// electron volt-kilogram relationship (CGS)
751pub const ELECTRON_VOLT_KILOGRAM_RELATIONSHIP_CGS: f64 = 1.782_661_920_999_999_86e-33;
752pub const ELECTRON_VOLT_KILOGRAM_RELATIONSHIP: f64 = ELECTRON_VOLT_KILOGRAM_RELATIONSHIP_SI;
753
754/// elementary charge
755/// Unit: C
756/// Uncertainty: (exact)
757pub const ELEMENTARY_CHARGE: f64 = 1.602_176_633_999_999_89e-19;
758
759/// elementary charge over h-bar
760/// Unit: A J^-1
761/// Uncertainty: (exact)
762pub const ELEMENTARY_CHARGE_OVER_H_BAR_SI: f64 = 1_519_267_447_000_000.0;
763/// elementary charge over h-bar (CGS)
764pub const ELEMENTARY_CHARGE_OVER_H_BAR_CGS: f64 = 151_926_744.699_999_988;
765pub const ELEMENTARY_CHARGE_OVER_H_BAR: f64 = ELEMENTARY_CHARGE_OVER_H_BAR_SI;
766
767/// Faraday constant
768/// Unit: C mol^-1
769/// Uncertainty: (exact)
770pub const FARADAY_CONSTANT: f64 = 96_485.332_120_000_006_4;
771
772/// Fermi coupling constant
773/// Unit: `GeV`^-2
774/// Uncertainty: 0.0000006e-5
775pub const FERMI_COUPLING_CONSTANT: f64 = 1.166_378_699_999_999_95e-05;
776
777/// fine-structure constant
778/// Uncertainty: 0.0000000011e-3
779pub const FINE_STRUCTURE_CONSTANT: f64 = 0.007_297_352_564_299_999_96;
780
781/// first radiation constant
782/// Unit: W m^2
783/// Uncertainty: (exact)
784pub const FIRST_RADIATION_CONSTANT_SI: f64 = 3.741_771_852_000_000_16e-16;
785/// first radiation constant (CGS)
786pub const FIRST_RADIATION_CONSTANT_CGS: f64 = 3.741_771_851_999_999_95e-05;
787pub const FIRST_RADIATION_CONSTANT: f64 = FIRST_RADIATION_CONSTANT_SI;
788
789/// first radiation constant for spectral radiance
790/// Unit: W m^2 sr^-1
791/// Uncertainty: (exact)
792pub const FIRST_RADIATION_CONSTANT_FOR_SPECTRAL_RADIANCE_SI: f64 = 1.191_042_972_000_000_12e-16;
793/// first radiation constant for spectral radiance (CGS)
794pub const FIRST_RADIATION_CONSTANT_FOR_SPECTRAL_RADIANCE_CGS: f64 = 1.191_042_972_000_000_06e-05;
795pub const FIRST_RADIATION_CONSTANT_FOR_SPECTRAL_RADIANCE: f64 = FIRST_RADIATION_CONSTANT_FOR_SPECTRAL_RADIANCE_SI;
796
797/// hartree-atomic mass unit relationship
798/// Unit: u
799/// Uncertainty: 0.00000000091e-8
800pub const HARTREE_ATOMIC_MASS_UNIT_RELATIONSHIP: f64 = 2.921_262_317_969_999_9e-08;
801
802/// hartree-electron volt relationship
803/// Unit: eV
804/// Uncertainty: 0.000000000030
805pub const HARTREE_ELECTRON_VOLT_RELATIONSHIP: f64 = 27.211_386_245_981_000_1;
806
807/// Hartree energy
808/// Unit: J
809/// Uncertainty: 0.0000000000048e-18
810pub const HARTREE_ENERGY_SI: f64 = 4.359_744_722_205_999_89e-18;
811/// Hartree energy (CGS)
812pub const HARTREE_ENERGY_CGS: f64 = 4.359_744_722_205_999_88e-11;
813pub const HARTREE_ENERGY: f64 = HARTREE_ENERGY_SI;
814
815/// Hartree energy in eV
816/// Unit: eV
817/// Uncertainty: 0.000000000030
818pub const HARTREE_ENERGY_IN_EV: f64 = 27.211_386_245_981_000_1;
819
820/// hartree-hertz relationship
821/// Unit: Hz
822/// Uncertainty: 0.0000000000072e15
823pub const HARTREE_HERTZ_RELATIONSHIP: f64 = 6_579_683_920_499_900.0;
824
825/// hartree-inverse meter relationship
826/// Unit: m^-1
827/// Uncertainty: 0.0000000000024e7
828pub const HARTREE_INVERSE_METER_RELATIONSHIP_SI: f64 = 21_947_463.136_314_000_9;
829/// hartree-inverse meter relationship (CGS)
830pub const HARTREE_INVERSE_METER_RELATIONSHIP_CGS: f64 = 219_474.631_363_140_012;
831pub const HARTREE_INVERSE_METER_RELATIONSHIP: f64 = HARTREE_INVERSE_METER_RELATIONSHIP_SI;
832
833/// hartree-joule relationship
834/// Unit: J
835/// Uncertainty: 0.0000000000048e-18
836pub const HARTREE_JOULE_RELATIONSHIP_SI: f64 = 4.359_744_722_205_999_89e-18;
837/// hartree-joule relationship (CGS)
838pub const HARTREE_JOULE_RELATIONSHIP_CGS: f64 = 4.359_744_722_205_999_88e-11;
839pub const HARTREE_JOULE_RELATIONSHIP: f64 = HARTREE_JOULE_RELATIONSHIP_SI;
840
841/// hartree-kelvin relationship
842/// Unit: K
843/// Uncertainty: 0.0000000000034e5
844pub const HARTREE_KELVIN_RELATIONSHIP: f64 = 315_775.024_803_980_021;
845
846/// hartree-kilogram relationship
847/// Unit: kg
848/// Uncertainty: 0.0000000000053e-35
849pub const HARTREE_KILOGRAM_RELATIONSHIP_SI: f64 = 4.850_870_209_541_900_36e-35;
850/// hartree-kilogram relationship (CGS)
851pub const HARTREE_KILOGRAM_RELATIONSHIP_CGS: f64 = 4.850_870_209_541_900_15e-32;
852pub const HARTREE_KILOGRAM_RELATIONSHIP: f64 = HARTREE_KILOGRAM_RELATIONSHIP_SI;
853
854/// helion-electron mass ratio
855/// Uncertainty: 0.00000016
856pub const HELION_ELECTRON_MASS_RATIO: f64 = 5_495.885_279_840_000_29;
857
858/// helion g factor
859/// Uncertainty: 0.0000000034
860pub const HELION_G_FACTOR: f64 = -4.255_250_699_500_000_34;
861
862/// helion mag. mom.
863/// Unit: J T^-1
864/// Uncertainty: 0.00000000093e-26
865pub const HELION_MAG_MOM_SI: f64 = -1.074_617_551_979_999_98e-26;
866/// helion mag. mom. (CGS)
867pub const HELION_MAG_MOM_CGS: f64 = -1.074_617_551_979_999_94e-23;
868pub const HELION_MAG_MOM: f64 = HELION_MAG_MOM_SI;
869
870/// helion mag. mom. to Bohr magneton ratio
871/// Uncertainty: 0.00000000094e-3
872pub const HELION_MAG_MOM_TO_BOHR_MAGNETON_RATIO: f64 = -0.001_158_740_980_830_000_02;
873
874/// helion mag. mom. to nuclear magneton ratio
875/// Uncertainty: 0.0000000017
876pub const HELION_MAG_MOM_TO_NUCLEAR_MAGNETON_RATIO: f64 = -2.127_625_349_800_000_18;
877
878/// helion mass
879/// Unit: kg
880/// Uncertainty: 0.0000000016e-27
881pub const HELION_MASS_SI: f64 = 5.006_412_786_199_999_95e-27;
882/// helion mass (CGS)
883pub const HELION_MASS_CGS: f64 = 5.006_412_786_200_000_01e-24;
884pub const HELION_MASS: f64 = HELION_MASS_SI;
885
886/// helion mass energy equivalent
887/// Unit: J
888/// Uncertainty: 0.0000000014e-10
889pub const HELION_MASS_ENERGY_EQUIVALENT_SI: f64 = 4.499_539_418_499_999_94e-10;
890/// helion mass energy equivalent (CGS)
891pub const HELION_MASS_ENERGY_EQUIVALENT_CGS: f64 = 0.004_499_539_418_499_999_73;
892pub const HELION_MASS_ENERGY_EQUIVALENT: f64 = HELION_MASS_ENERGY_EQUIVALENT_SI;
893
894/// helion mass energy equivalent in `MeV`
895/// Unit: `MeV`
896/// Uncertainty: 0.00000088
897pub const HELION_MASS_ENERGY_EQUIVALENT_IN_MEV: f64 = 2_808.391_611_120_000_11;
898
899/// helion mass in u
900/// Unit: u
901/// Uncertainty: 0.000000000074
902pub const HELION_MASS_IN_U: f64 = 3.014_932_246_932_000_13;
903
904/// helion molar mass
905/// Unit: kg mol^-1
906/// Uncertainty: 0.00000000094e-3
907pub const HELION_MOLAR_MASS_SI: f64 = 0.003_014_932_250_099_999_85;
908/// helion molar mass (CGS)
909pub const HELION_MOLAR_MASS_CGS: f64 = 3.014_932_250_099_999_77;
910pub const HELION_MOLAR_MASS: f64 = HELION_MOLAR_MASS_SI;
911
912/// helion-proton mass ratio
913/// Uncertainty: 0.000000000070
914pub const HELION_PROTON_MASS_RATIO: f64 = 2.993_152_671_552_000_04;
915
916/// helion relative atomic mass
917/// Uncertainty: 0.000000000074
918pub const HELION_RELATIVE_ATOMIC_MASS: f64 = 3.014_932_246_932_000_13;
919
920/// helion shielding shift
921/// Uncertainty: 0.0000023e-5
922pub const HELION_SHIELDING_SHIFT: f64 = 5.996_702_900_000_000_3e-05;
923
924/// hertz-atomic mass unit relationship
925/// Unit: u
926/// Uncertainty: 0.0000000014e-24
927pub const HERTZ_ATOMIC_MASS_UNIT_RELATIONSHIP: f64 = 4.439_821_659_000_000_06e-24;
928
929/// hertz-electron volt relationship
930/// Unit: eV
931/// Uncertainty: (exact)
932pub const HERTZ_ELECTRON_VOLT_RELATIONSHIP: f64 = 4.135_667_696_000_000_34e-15;
933
934/// hertz-hartree relationship
935/// Unit: `E_h`
936/// Uncertainty: 0.0000000000017e-16
937pub const HERTZ_HARTREE_RELATIONSHIP: f64 = 1.519_829_846_057_400_02e-16;
938
939/// hertz-inverse meter relationship
940/// Unit: m^-1
941/// Uncertainty: (exact)
942pub const HERTZ_INVERSE_METER_RELATIONSHIP_SI: f64 = 3.335_640_950_999_999_91e-09;
943/// hertz-inverse meter relationship (CGS)
944pub const HERTZ_INVERSE_METER_RELATIONSHIP_CGS: f64 = 3.335_640_950_999_999_98e-11;
945pub const HERTZ_INVERSE_METER_RELATIONSHIP: f64 = HERTZ_INVERSE_METER_RELATIONSHIP_SI;
946
947/// hertz-joule relationship
948/// Unit: J
949/// Uncertainty: (exact)
950pub const HERTZ_JOULE_RELATIONSHIP_SI: f64 = 6.626_070_149_999_999_83e-34;
951/// hertz-joule relationship (CGS)
952pub const HERTZ_JOULE_RELATIONSHIP_CGS: f64 = 6.626_070_149_999_999_92e-27;
953pub const HERTZ_JOULE_RELATIONSHIP: f64 = HERTZ_JOULE_RELATIONSHIP_SI;
954
955/// hertz-kelvin relationship
956/// Unit: K
957/// Uncertainty: (exact)
958pub const HERTZ_KELVIN_RELATIONSHIP: f64 = 4.799_243_072_999_999_71e-11;
959
960/// hertz-kilogram relationship
961/// Unit: kg
962/// Uncertainty: (exact)
963pub const HERTZ_KILOGRAM_RELATIONSHIP_SI: f64 = 7.372_497_322_999_999_41e-51;
964/// hertz-kilogram relationship (CGS)
965pub const HERTZ_KILOGRAM_RELATIONSHIP_CGS: f64 = 7.372_497_322_999_999_03e-48;
966pub const HERTZ_KILOGRAM_RELATIONSHIP: f64 = HERTZ_KILOGRAM_RELATIONSHIP_SI;
967
968/// hyperfine transition frequency of Cs-133
969/// Unit: Hz
970/// Uncertainty: (exact)
971pub const HYPERFINE_TRANSITION_FREQUENCY_OF_CS_133: f64 = 9_192_631_770.0;
972
973/// inverse fine-structure constant
974/// Uncertainty: 0.000000021
975pub const INVERSE_FINE_STRUCTURE_CONSTANT: f64 = 137.035_999_177_000_008;
976
977/// inverse meter-atomic mass unit relationship
978/// Unit: u
979/// Uncertainty: 0.00000000041e-15
980pub const INVERSE_METER_ATOMIC_MASS_UNIT_RELATIONSHIP: f64 = 1.331_025_048_24e-15;
981
982/// inverse meter-electron volt relationship
983/// Unit: eV
984/// Uncertainty: (exact)
985pub const INVERSE_METER_ELECTRON_VOLT_RELATIONSHIP: f64 = 1.239_841_984_000_000_01e-06;
986
987/// inverse meter-hartree relationship
988/// Unit: `E_h`
989/// Uncertainty: 0.0000000000050e-8
990pub const INVERSE_METER_HARTREE_RELATIONSHIP: f64 = 4.556_335_252_913_200_15e-08;
991
992/// inverse meter-hertz relationship
993/// Unit: Hz
994/// Uncertainty: (exact)
995pub const INVERSE_METER_HERTZ_RELATIONSHIP: f64 = 299_792_458.0;
996
997/// inverse meter-joule relationship
998/// Unit: J
999/// Uncertainty: (exact)
1000pub const INVERSE_METER_JOULE_RELATIONSHIP_SI: f64 = 1.986_445_856_999_999_92e-25;
1001/// inverse meter-joule relationship (CGS)
1002pub const INVERSE_METER_JOULE_RELATIONSHIP_CGS: f64 = 1.986_445_857_000_000_11e-18;
1003pub const INVERSE_METER_JOULE_RELATIONSHIP: f64 = INVERSE_METER_JOULE_RELATIONSHIP_SI;
1004
1005/// inverse meter-kelvin relationship
1006/// Unit: K
1007/// Uncertainty: (exact)
1008pub const INVERSE_METER_KELVIN_RELATIONSHIP: f64 = 0.014_387_768_77;
1009
1010/// inverse meter-kilogram relationship
1011/// Unit: kg
1012/// Uncertainty: (exact)
1013pub const INVERSE_METER_KILOGRAM_RELATIONSHIP_SI: f64 = 2.210_219_094_000_000_11e-42;
1014/// inverse meter-kilogram relationship (CGS)
1015pub const INVERSE_METER_KILOGRAM_RELATIONSHIP_CGS: f64 = 2.210_219_094_000_000_1e-39;
1016pub const INVERSE_METER_KILOGRAM_RELATIONSHIP: f64 = INVERSE_METER_KILOGRAM_RELATIONSHIP_SI;
1017
1018/// inverse of conductance quantum
1019/// Unit: ohm
1020/// Uncertainty: (exact)
1021pub const INVERSE_OF_CONDUCTANCE_QUANTUM: f64 = 12_906.403_720_000_000_2;
1022
1023/// Josephson constant
1024/// Unit: Hz V^-1
1025/// Uncertainty: (exact)
1026pub const JOSEPHSON_CONSTANT: f64 = 483_597_848_400_000.0;
1027
1028/// joule-atomic mass unit relationship
1029/// Unit: u
1030/// Uncertainty: 0.0000000021e9
1031pub const JOULE_ATOMIC_MASS_UNIT_RELATIONSHIP: f64 = 6_700_535_247.100_000_38;
1032
1033/// joule-electron volt relationship
1034/// Unit: eV
1035/// Uncertainty: (exact)
1036pub const JOULE_ELECTRON_VOLT_RELATIONSHIP: f64 = 6.241_509_074e+18;
1037
1038/// joule-hartree relationship
1039/// Unit: `E_h`
1040/// Uncertainty: 0.0000000000025e17
1041pub const JOULE_HARTREE_RELATIONSHIP: f64 = 229_371_227_839_689_984.0;
1042
1043/// joule-hertz relationship
1044/// Unit: Hz
1045/// Uncertainty: (exact)
1046pub const JOULE_HERTZ_RELATIONSHIP: f64 = 1.509_190_178_999_999_89e+33;
1047
1048/// joule-inverse meter relationship
1049/// Unit: m^-1
1050/// Uncertainty: (exact)
1051pub const JOULE_INVERSE_METER_RELATIONSHIP_SI: f64 = 5.034_116_566_999_999_95e+24;
1052/// joule-inverse meter relationship (CGS)
1053pub const JOULE_INVERSE_METER_RELATIONSHIP_CGS: f64 = 5.034_116_567_000_000_18e+22;
1054pub const JOULE_INVERSE_METER_RELATIONSHIP: f64 = JOULE_INVERSE_METER_RELATIONSHIP_SI;
1055
1056/// joule-kelvin relationship
1057/// Unit: K
1058/// Uncertainty: (exact)
1059pub const JOULE_KELVIN_RELATIONSHIP: f64 = 7.242_970_516_000_000_18e+22;
1060
1061/// joule-kilogram relationship
1062/// Unit: kg
1063/// Uncertainty: (exact)
1064pub const JOULE_KILOGRAM_RELATIONSHIP_SI: f64 = 1.112_650_055_999_999_99e-17;
1065/// joule-kilogram relationship (CGS)
1066pub const JOULE_KILOGRAM_RELATIONSHIP_CGS: f64 = 1.112_650_055_999_999_96e-14;
1067pub const JOULE_KILOGRAM_RELATIONSHIP: f64 = JOULE_KILOGRAM_RELATIONSHIP_SI;
1068
1069/// kelvin-atomic mass unit relationship
1070/// Unit: u
1071/// Uncertainty: 0.0000000029e-14
1072pub const KELVIN_ATOMIC_MASS_UNIT_RELATIONSHIP: f64 = 9.251_087_288_400_000_04e-14;
1073
1074/// kelvin-electron volt relationship
1075/// Unit: eV
1076/// Uncertainty: (exact)
1077pub const KELVIN_ELECTRON_VOLT_RELATIONSHIP: f64 = 8.617_333_262_000_000_06e-05;
1078
1079/// kelvin-hartree relationship
1080/// Unit: `E_h`
1081/// Uncertainty: 0.0000000000035e-6
1082pub const KELVIN_HARTREE_RELATIONSHIP: f64 = 3.166_811_563_456_400_01e-06;
1083
1084/// kelvin-hertz relationship
1085/// Unit: Hz
1086/// Uncertainty: (exact)
1087pub const KELVIN_HERTZ_RELATIONSHIP: f64 = 20_836_619_120.0;
1088
1089/// kelvin-inverse meter relationship
1090/// Unit: m^-1
1091/// Uncertainty: (exact)
1092pub const KELVIN_INVERSE_METER_RELATIONSHIP_SI: f64 = 69.503_480_039_999_999_5;
1093/// kelvin-inverse meter relationship (CGS)
1094pub const KELVIN_INVERSE_METER_RELATIONSHIP_CGS: f64 = 0.695_034_800_399_999_986;
1095pub const KELVIN_INVERSE_METER_RELATIONSHIP: f64 = KELVIN_INVERSE_METER_RELATIONSHIP_SI;
1096
1097/// kelvin-joule relationship
1098/// Unit: J
1099/// Uncertainty: (exact)
1100pub const KELVIN_JOULE_RELATIONSHIP_SI: f64 = 1.380_649_000_000_000_09e-23;
1101/// kelvin-joule relationship (CGS)
1102pub const KELVIN_JOULE_RELATIONSHIP_CGS: f64 = 1.380_648_999_999_999_99e-16;
1103pub const KELVIN_JOULE_RELATIONSHIP: f64 = KELVIN_JOULE_RELATIONSHIP_SI;
1104
1105/// kelvin-kilogram relationship
1106/// Unit: kg
1107/// Uncertainty: (exact)
1108pub const KELVIN_KILOGRAM_RELATIONSHIP_SI: f64 = 1.536_179_187_000_000_09e-40;
1109/// kelvin-kilogram relationship (CGS)
1110pub const KELVIN_KILOGRAM_RELATIONSHIP_CGS: f64 = 1.536_179_187_000_000_19e-37;
1111pub const KELVIN_KILOGRAM_RELATIONSHIP: f64 = KELVIN_KILOGRAM_RELATIONSHIP_SI;
1112
1113/// kilogram-atomic mass unit relationship
1114/// Unit: u
1115/// Uncertainty: 0.0000000019e26
1116pub const KILOGRAM_ATOMIC_MASS_UNIT_RELATIONSHIP: f64 = 6.022_140_753_699_999_96e+26;
1117
1118/// kilogram-electron volt relationship
1119/// Unit: eV
1120/// Uncertainty: (exact)
1121pub const KILOGRAM_ELECTRON_VOLT_RELATIONSHIP: f64 = 5.609_588_602_999_999_76e+35;
1122
1123/// kilogram-hartree relationship
1124/// Unit: `E_h`
1125/// Uncertainty: 0.0000000000022e34
1126pub const KILOGRAM_HARTREE_RELATIONSHIP: f64 = 2.061_485_788_741_500_06e+34;
1127
1128/// kilogram-hertz relationship
1129/// Unit: Hz
1130/// Uncertainty: (exact)
1131pub const KILOGRAM_HERTZ_RELATIONSHIP: f64 = 1.356_392_488_999_999_99e+50;
1132
1133/// kilogram-inverse meter relationship
1134/// Unit: m^-1
1135/// Uncertainty: (exact)
1136pub const KILOGRAM_INVERSE_METER_RELATIONSHIP_SI: f64 = 4.524_438_334_999_999_82e+41;
1137/// kilogram-inverse meter relationship (CGS)
1138pub const KILOGRAM_INVERSE_METER_RELATIONSHIP_CGS: f64 = 4.524_438_334_999_999_84e+39;
1139pub const KILOGRAM_INVERSE_METER_RELATIONSHIP: f64 = KILOGRAM_INVERSE_METER_RELATIONSHIP_SI;
1140
1141/// kilogram-joule relationship
1142/// Unit: J
1143/// Uncertainty: (exact)
1144pub const KILOGRAM_JOULE_RELATIONSHIP_SI: f64 = 89_875_517_870_000_000.0;
1145/// kilogram-joule relationship (CGS)
1146pub const KILOGRAM_JOULE_RELATIONSHIP_CGS: f64 = 8.987_551_787_000_000_25e+23;
1147pub const KILOGRAM_JOULE_RELATIONSHIP: f64 = KILOGRAM_JOULE_RELATIONSHIP_SI;
1148
1149/// kilogram-kelvin relationship
1150/// Unit: K
1151/// Uncertainty: (exact)
1152pub const KILOGRAM_KELVIN_RELATIONSHIP: f64 = 6.509_657_260_000_000_32e+39;
1153
1154/// lattice parameter of silicon
1155/// Unit: m
1156/// Uncertainty: 0.000000089e-10
1157pub const LATTICE_PARAMETER_OF_SILICON_SI: f64 = 5.431_020_511_000_000_28e-10;
1158/// lattice parameter of silicon (CGS)
1159pub const LATTICE_PARAMETER_OF_SILICON_CGS: f64 = 5.431_020_511_000_000_36e-08;
1160pub const LATTICE_PARAMETER_OF_SILICON: f64 = LATTICE_PARAMETER_OF_SILICON_SI;
1161
1162/// lattice spacing of ideal Si (220)
1163/// Unit: m
1164/// Uncertainty: 0.000000032e-10
1165pub const LATTICE_SPACING_OF_IDEAL_SI_220_SI: f64 = 1.920_155_715_999_999_89e-10;
1166/// lattice spacing of ideal Si (220) (CGS)
1167pub const LATTICE_SPACING_OF_IDEAL_SI_220_CGS: f64 = 1.920_155_716_000_000_06e-08;
1168pub const LATTICE_SPACING_OF_IDEAL_SI_220: f64 = LATTICE_SPACING_OF_IDEAL_SI_220_SI;
1169
1170/// Loschmidt constant (273.15 K, 100 kPa)
1171/// Unit: m^-3
1172/// Uncertainty: (exact)
1173pub const LOSCHMIDT_CONSTANT_273_15_K_100_KPA_SI: f64 = 2.651_645_803_999_999_87e+25;
1174/// Loschmidt constant (273.15 K, 100 kPa) (CGS)
1175pub const LOSCHMIDT_CONSTANT_273_15_K_100_KPA_CGS: f64 = 2.651_645_803_999_999_59e+19;
1176pub const LOSCHMIDT_CONSTANT_273_15_K_100_KPA: f64 = LOSCHMIDT_CONSTANT_273_15_K_100_KPA_SI;
1177
1178/// Loschmidt constant (273.15 K, 101.325 kPa)
1179/// Unit: m^-3
1180/// Uncertainty: (exact)
1181pub const LOSCHMIDT_CONSTANT_273_15_K_101_325_KPA_SI: f64 = 2.686_780_111_000_000_06e+25;
1182/// Loschmidt constant (273.15 K, 101.325 kPa) (CGS)
1183pub const LOSCHMIDT_CONSTANT_273_15_K_101_325_KPA_CGS: f64 = 2.686_780_111_000_000_1e+19;
1184pub const LOSCHMIDT_CONSTANT_273_15_K_101_325_KPA: f64 = LOSCHMIDT_CONSTANT_273_15_K_101_325_KPA_SI;
1185
1186/// luminous efficacy
1187/// Unit: lm W^-1
1188/// Uncertainty: (exact)
1189pub const LUMINOUS_EFFICACY_SI: f64 = 683.0;
1190/// luminous efficacy (CGS)
1191pub const LUMINOUS_EFFICACY_CGS: f64 = 6.829_999_999_999_999_32e-05;
1192pub const LUMINOUS_EFFICACY: f64 = LUMINOUS_EFFICACY_SI;
1193
1194/// mag. flux quantum
1195/// Unit: Wb
1196/// Uncertainty: (exact)
1197pub const MAG_FLUX_QUANTUM: f64 = 2.067_833_848_000_000_17e-15;
1198
1199/// molar gas constant
1200/// Unit: J mol^-1 K^-1
1201/// Uncertainty: (exact)
1202pub const MOLAR_GAS_CONSTANT_SI: f64 = 8.314_462_618_000_000_3;
1203/// molar gas constant (CGS)
1204pub const MOLAR_GAS_CONSTANT_CGS: f64 = 83_144_626.180_000_007_2;
1205pub const MOLAR_GAS_CONSTANT: f64 = MOLAR_GAS_CONSTANT_SI;
1206
1207/// molar mass constant
1208/// Unit: kg mol^-1
1209/// Uncertainty: 0.00000000031e-3
1210pub const MOLAR_MASS_CONSTANT_SI: f64 = 0.001_000_000_001_049_999_95;
1211/// molar mass constant (CGS)
1212pub const MOLAR_MASS_CONSTANT_CGS: f64 = 1.000_000_001_049_999_86;
1213pub const MOLAR_MASS_CONSTANT: f64 = MOLAR_MASS_CONSTANT_SI;
1214
1215/// molar mass of carbon-12
1216/// Unit: kg mol^-1
1217/// Uncertainty: 0.0000000037e-3
1218pub const MOLAR_MASS_OF_CARBON_12_SI: f64 = 0.012_000_000_012_599_999_4;
1219/// molar mass of carbon-12 (CGS)
1220pub const MOLAR_MASS_OF_CARBON_12_CGS: f64 = 12.000_000_012_599_999_3;
1221pub const MOLAR_MASS_OF_CARBON_12: f64 = MOLAR_MASS_OF_CARBON_12_SI;
1222
1223/// molar Planck constant
1224/// Unit: J Hz^-1 mol^-1
1225/// Uncertainty: (exact)
1226pub const MOLAR_PLANCK_CONSTANT_SI: f64 = 3.990_312_712_000_000_01e-10;
1227/// molar Planck constant (CGS)
1228pub const MOLAR_PLANCK_CONSTANT_CGS: f64 = 0.003_990_312_711_999_999_96;
1229pub const MOLAR_PLANCK_CONSTANT: f64 = MOLAR_PLANCK_CONSTANT_SI;
1230
1231/// molar volume of ideal gas (273.15 K, 100 kPa)
1232/// Unit: m^3 mol^-1
1233/// Uncertainty: (exact)
1234pub const MOLAR_VOLUME_OF_IDEAL_GAS_273_15_K_100_KPA_SI: f64 = 0.022_710_954_639_999_999_4;
1235/// molar volume of ideal gas (273.15 K, 100 kPa) (CGS)
1236pub const MOLAR_VOLUME_OF_IDEAL_GAS_273_15_K_100_KPA_CGS: f64 = 22_710.954_639_999_999_9;
1237pub const MOLAR_VOLUME_OF_IDEAL_GAS_273_15_K_100_KPA: f64 = MOLAR_VOLUME_OF_IDEAL_GAS_273_15_K_100_KPA_SI;
1238
1239/// molar volume of ideal gas (273.15 K, 101.325 kPa)
1240/// Unit: m^3 mol^-1
1241/// Uncertainty: (exact)
1242pub const MOLAR_VOLUME_OF_IDEAL_GAS_273_15_K_101_325_KPA_SI: f64 = 0.022_413_969_539_999_998_4;
1243/// molar volume of ideal gas (273.15 K, 101.325 kPa) (CGS)
1244pub const MOLAR_VOLUME_OF_IDEAL_GAS_273_15_K_101_325_KPA_CGS: f64 = 22_413.969_539_999_998_2;
1245pub const MOLAR_VOLUME_OF_IDEAL_GAS_273_15_K_101_325_KPA: f64 = MOLAR_VOLUME_OF_IDEAL_GAS_273_15_K_101_325_KPA_SI;
1246
1247/// molar volume of silicon
1248/// Unit: m^3 mol^-1
1249/// Uncertainty: 0.000000060e-5
1250pub const MOLAR_VOLUME_OF_SILICON_SI: f64 = 1.205_883_198_999_999_99e-05;
1251/// molar volume of silicon (CGS)
1252pub const MOLAR_VOLUME_OF_SILICON_CGS: f64 = 12.058_831_989_999_999_8;
1253pub const MOLAR_VOLUME_OF_SILICON: f64 = MOLAR_VOLUME_OF_SILICON_SI;
1254
1255/// Molybdenum x unit
1256/// Unit: m
1257/// Uncertainty: 0.00000053e-13
1258pub const MOLYBDENUM_X_UNIT_SI: f64 = 1.002_099_520_000_000_05e-13;
1259/// Molybdenum x unit (CGS)
1260pub const MOLYBDENUM_X_UNIT_CGS: f64 = 1.002_099_520_000_000_07e-11;
1261pub const MOLYBDENUM_X_UNIT: f64 = MOLYBDENUM_X_UNIT_SI;
1262
1263/// muon Compton wavelength
1264/// Unit: m
1265/// Uncertainty: 0.000000026e-14
1266pub const MUON_COMPTON_WAVELENGTH_SI: f64 = 1.173_444_109_999_999_96e-14;
1267/// muon Compton wavelength (CGS)
1268pub const MUON_COMPTON_WAVELENGTH_CGS: f64 = 1.173_444_109_999_999_93e-12;
1269pub const MUON_COMPTON_WAVELENGTH: f64 = MUON_COMPTON_WAVELENGTH_SI;
1270
1271/// muon-electron mass ratio
1272/// Uncertainty: 0.0000046
1273pub const MUON_ELECTRON_MASS_RATIO: f64 = 206.768_282_699_999_986;
1274
1275/// muon g factor
1276/// Uncertainty: 0.00000000082
1277pub const MUON_G_FACTOR: f64 = -2.002_331_841_230_000_19;
1278
1279/// muon mag. mom.
1280/// Unit: J T^-1
1281/// Uncertainty: 0.00000010e-26
1282pub const MUON_MAG_MOM_SI: f64 = -4.490_448_299_999_999_82e-26;
1283/// muon mag. mom. (CGS)
1284pub const MUON_MAG_MOM_CGS: f64 = -4.490_448_299_999_999_54e-23;
1285pub const MUON_MAG_MOM: f64 = MUON_MAG_MOM_SI;
1286
1287/// muon mag. mom. anomaly
1288/// Uncertainty: 0.00000041e-3
1289pub const MUON_MAG_MOM_ANOMALY: f64 = 0.001_165_920_620_000_000_1;
1290
1291/// muon mag. mom. to Bohr magneton ratio
1292/// Uncertainty: 0.00000011e-3
1293pub const MUON_MAG_MOM_TO_BOHR_MAGNETON_RATIO: f64 = -0.004_841_970_479_999_999_94;
1294
1295/// muon mag. mom. to nuclear magneton ratio
1296/// Uncertainty: 0.00000020
1297pub const MUON_MAG_MOM_TO_NUCLEAR_MAGNETON_RATIO: f64 = -8.890_597_039_999_999_4;
1298
1299/// muon mass
1300/// Unit: kg
1301/// Uncertainty: 0.000000042e-28
1302pub const MUON_MASS_SI: f64 = 1.883_531_627_000_000_11e-28;
1303/// muon mass (CGS)
1304pub const MUON_MASS_CGS: f64 = 1.883_531_627_000_000_13e-25;
1305pub const MUON_MASS: f64 = MUON_MASS_SI;
1306
1307/// muon mass energy equivalent
1308/// Unit: J
1309/// Uncertainty: 0.000000038e-11
1310pub const MUON_MASS_ENERGY_EQUIVALENT_SI: f64 = 1.692_833_803_999_999_89e-11;
1311/// muon mass energy equivalent (CGS)
1312pub const MUON_MASS_ENERGY_EQUIVALENT_CGS: f64 = 0.000_169_283_380_399_999_991;
1313pub const MUON_MASS_ENERGY_EQUIVALENT: f64 = MUON_MASS_ENERGY_EQUIVALENT_SI;
1314
1315/// muon mass energy equivalent in `MeV`
1316/// Unit: `MeV`
1317/// Uncertainty: 0.0000023
1318pub const MUON_MASS_ENERGY_EQUIVALENT_IN_MEV: f64 = 105.658_375_500_000_005;
1319
1320/// muon mass in u
1321/// Unit: u
1322/// Uncertainty: 0.0000000025
1323pub const MUON_MASS_IN_U: f64 = 0.113_428_925_700_000_002;
1324
1325/// muon molar mass
1326/// Unit: kg mol^-1
1327/// Uncertainty: 0.000000025e-4
1328pub const MUON_MOLAR_MASS_SI: f64 = 0.000_113_428_925_800_000_002;
1329/// muon molar mass (CGS)
1330pub const MUON_MOLAR_MASS_CGS: f64 = 0.113_428_925_799_999_997;
1331pub const MUON_MOLAR_MASS: f64 = MUON_MOLAR_MASS_SI;
1332
1333/// muon-neutron mass ratio
1334/// Uncertainty: 0.0000000025
1335pub const MUON_NEUTRON_MASS_RATIO: f64 = 0.112_454_516_800_000_001;
1336
1337/// muon-proton mag. mom. ratio
1338/// Uncertainty: 0.000000071
1339pub const MUON_PROTON_MAG_MOM_RATIO: f64 = -3.183_345_146_000_000_18;
1340
1341/// muon-proton mass ratio
1342/// Uncertainty: 0.0000000025
1343pub const MUON_PROTON_MASS_RATIO: f64 = 0.112_609_526_200_000_004;
1344
1345/// muon-tau mass ratio
1346/// Uncertainty: 0.00040e-2
1347pub const MUON_TAU_MASS_RATIO: f64 = 0.059_463_500_000_000_002_5;
1348
1349/// natural unit of action
1350/// Unit: J s
1351/// Uncertainty: (exact)
1352pub const NATURAL_UNIT_OF_ACTION_SI: f64 = 1.054_571_816_999_999_99e-34;
1353/// natural unit of action (CGS)
1354pub const NATURAL_UNIT_OF_ACTION_CGS: f64 = 1.054_571_816_999_999_96e-27;
1355pub const NATURAL_UNIT_OF_ACTION: f64 = NATURAL_UNIT_OF_ACTION_SI;
1356
1357/// natural unit of action in eV s
1358/// Unit: eV s
1359/// Uncertainty: (exact)
1360pub const NATURAL_UNIT_OF_ACTION_IN_EV_S: f64 = 6.582_119_569_000_000_31e-16;
1361
1362/// natural unit of energy
1363/// Unit: J
1364/// Uncertainty: 0.0000000026e-14
1365pub const NATURAL_UNIT_OF_ENERGY_SI: f64 = 8.187_105_788_000_000_12e-14;
1366/// natural unit of energy (CGS)
1367pub const NATURAL_UNIT_OF_ENERGY_CGS: f64 = 8.187_105_787_999_999_96e-07;
1368pub const NATURAL_UNIT_OF_ENERGY: f64 = NATURAL_UNIT_OF_ENERGY_SI;
1369
1370/// natural unit of energy in `MeV`
1371/// Unit: `MeV`
1372/// Uncertainty: 0.00000000016
1373pub const NATURAL_UNIT_OF_ENERGY_IN_MEV: f64 = 0.510_998_950_690_000_009;
1374
1375/// natural unit of length
1376/// Unit: m
1377/// Uncertainty: 0.0000000012e-13
1378pub const NATURAL_UNIT_OF_LENGTH_SI: f64 = 3.861_592_674_399_999_85e-13;
1379/// natural unit of length (CGS)
1380pub const NATURAL_UNIT_OF_LENGTH_CGS: f64 = 3.861_592_674_400_000_1e-11;
1381pub const NATURAL_UNIT_OF_LENGTH: f64 = NATURAL_UNIT_OF_LENGTH_SI;
1382
1383/// natural unit of mass
1384/// Unit: kg
1385/// Uncertainty: 0.0000000028e-31
1386pub const NATURAL_UNIT_OF_MASS_SI: f64 = 9.109_383_713_899_999_82e-31;
1387/// natural unit of mass (CGS)
1388pub const NATURAL_UNIT_OF_MASS_CGS: f64 = 9.109_383_713_899_999_97e-28;
1389pub const NATURAL_UNIT_OF_MASS: f64 = NATURAL_UNIT_OF_MASS_SI;
1390
1391/// natural unit of momentum
1392/// Unit: kg m s^-1
1393/// Uncertainty: 0.00000000085e-22
1394pub const NATURAL_UNIT_OF_MOMENTUM_SI: f64 = 2.730_924_534_459_999_83e-22;
1395/// natural unit of momentum (CGS)
1396pub const NATURAL_UNIT_OF_MOMENTUM_CGS: f64 = 2.730_924_534_459_999_88e-17;
1397pub const NATURAL_UNIT_OF_MOMENTUM: f64 = NATURAL_UNIT_OF_MOMENTUM_SI;
1398
1399/// natural unit of momentum in `MeV`/c
1400/// Unit: `MeV`/c
1401/// Uncertainty: 0.00000000016
1402pub const NATURAL_UNIT_OF_MOMENTUM_IN_MEV_OVER_C: f64 = 0.510_998_950_690_000_009;
1403
1404/// natural unit of time
1405/// Unit: s
1406/// Uncertainty: 0.00000000040e-21
1407pub const NATURAL_UNIT_OF_TIME: f64 = 1.288_088_666_440_000_02e-21;
1408
1409/// natural unit of velocity
1410/// Unit: m s^-1
1411/// Uncertainty: (exact)
1412pub const NATURAL_UNIT_OF_VELOCITY_SI: f64 = 299_792_458.0;
1413/// natural unit of velocity (CGS)
1414pub const NATURAL_UNIT_OF_VELOCITY_CGS: f64 = 29_979_245_800.0;
1415pub const NATURAL_UNIT_OF_VELOCITY: f64 = NATURAL_UNIT_OF_VELOCITY_SI;
1416
1417/// neutron Compton wavelength
1418/// Unit: m
1419/// Uncertainty: 0.00000000067e-15
1420pub const NEUTRON_COMPTON_WAVELENGTH_SI: f64 = 1.319_590_903_820_000_01e-15;
1421/// neutron Compton wavelength (CGS)
1422pub const NEUTRON_COMPTON_WAVELENGTH_CGS: f64 = 1.319_590_903_819_999_99e-13;
1423pub const NEUTRON_COMPTON_WAVELENGTH: f64 = NEUTRON_COMPTON_WAVELENGTH_SI;
1424
1425/// neutron-electron mag. mom. ratio
1426/// Uncertainty: 0.00000024e-3
1427pub const NEUTRON_ELECTRON_MAG_MOM_RATIO: f64 = 0.001_040_668_839_999_999_91;
1428
1429/// neutron-electron mass ratio
1430/// Uncertainty: 0.00000074
1431pub const NEUTRON_ELECTRON_MASS_RATIO: f64 = 1_838.683_661_999_999_91;
1432
1433/// neutron g factor
1434/// Uncertainty: 0.00000090
1435pub const NEUTRON_G_FACTOR: f64 = -3.826_085_519_999_999_91;
1436
1437/// neutron gyromag. ratio
1438/// Unit: s^-1 T^-1
1439/// Uncertainty: 0.00000043e8
1440pub const NEUTRON_GYROMAG_RATIO_SI: f64 = 183_247_174.0;
1441/// neutron gyromag. ratio (CGS)
1442pub const NEUTRON_GYROMAG_RATIO_CGS: f64 = 18_324.717_400_000_001_4;
1443pub const NEUTRON_GYROMAG_RATIO: f64 = NEUTRON_GYROMAG_RATIO_SI;
1444
1445/// neutron gyromag. ratio in MHz/T
1446/// Unit: MHz T^-1
1447/// Uncertainty: 0.0000069
1448pub const NEUTRON_GYROMAG_RATIO_IN_MHZ_OVER_T_SI: f64 = 29.164_693_499_999_998_5;
1449/// neutron gyromag. ratio in MHz/T (CGS)
1450pub const NEUTRON_GYROMAG_RATIO_IN_MHZ_OVER_T_CGS: f64 = 0.002_916_469_35;
1451pub const NEUTRON_GYROMAG_RATIO_IN_MHZ_OVER_T: f64 = NEUTRON_GYROMAG_RATIO_IN_MHZ_OVER_T_SI;
1452
1453/// neutron mag. mom.
1454/// Unit: J T^-1
1455/// Uncertainty: 0.0000023e-27
1456pub const NEUTRON_MAG_MOM_SI: f64 = -9.662_365_3e-27;
1457/// neutron mag. mom. (CGS)
1458pub const NEUTRON_MAG_MOM_CGS: f64 = -9.662_365_299_999_999_55e-24;
1459pub const NEUTRON_MAG_MOM: f64 = NEUTRON_MAG_MOM_SI;
1460
1461/// neutron mag. mom. to Bohr magneton ratio
1462/// Uncertainty: 0.00000025e-3
1463pub const NEUTRON_MAG_MOM_TO_BOHR_MAGNETON_RATIO: f64 = -0.001_041_875_650_000_000_05;
1464
1465/// neutron mag. mom. to nuclear magneton ratio
1466/// Uncertainty: 0.00000045
1467pub const NEUTRON_MAG_MOM_TO_NUCLEAR_MAGNETON_RATIO: f64 = -1.913_042_759_999_999_95;
1468
1469/// neutron mass
1470/// Unit: kg
1471/// Uncertainty: 0.00000000085e-27
1472pub const NEUTRON_MASS_SI: f64 = 1.674_927_500_560_000_11e-27;
1473/// neutron mass (CGS)
1474pub const NEUTRON_MASS_CGS: f64 = 1.674_927_500_560_000_27e-24;
1475pub const NEUTRON_MASS: f64 = NEUTRON_MASS_SI;
1476
1477/// neutron mass energy equivalent
1478/// Unit: J
1479/// Uncertainty: 0.00000000076e-10
1480pub const NEUTRON_MASS_ENERGY_EQUIVALENT_SI: f64 = 1.505_349_765_140_000_02e-10;
1481/// neutron mass energy equivalent (CGS)
1482pub const NEUTRON_MASS_ENERGY_EQUIVALENT_CGS: f64 = 0.001_505_349_765_139_999_98;
1483pub const NEUTRON_MASS_ENERGY_EQUIVALENT: f64 = NEUTRON_MASS_ENERGY_EQUIVALENT_SI;
1484
1485/// neutron mass energy equivalent in `MeV`
1486/// Unit: `MeV`
1487/// Uncertainty: 0.00000048
1488pub const NEUTRON_MASS_ENERGY_EQUIVALENT_IN_MEV: f64 = 939.565_421_939_999_965;
1489
1490/// neutron mass in u
1491/// Unit: u
1492/// Uncertainty: 0.00000000040
1493pub const NEUTRON_MASS_IN_U: f64 = 1.008_664_916_060_000_08;
1494
1495/// neutron molar mass
1496/// Unit: kg mol^-1
1497/// Uncertainty: 0.00000000051e-3
1498pub const NEUTRON_MOLAR_MASS_SI: f64 = 0.001_008_664_917_12;
1499/// neutron molar mass (CGS)
1500pub const NEUTRON_MOLAR_MASS_CGS: f64 = 1.008_664_917_119_999_95;
1501pub const NEUTRON_MOLAR_MASS: f64 = NEUTRON_MOLAR_MASS_SI;
1502
1503/// neutron-muon mass ratio
1504/// Uncertainty: 0.00000020
1505pub const NEUTRON_MUON_MASS_RATIO: f64 = 8.892_484_079_999_999_12;
1506
1507/// neutron-proton mag. mom. ratio
1508/// Uncertainty: 0.00000016
1509pub const NEUTRON_PROTON_MAG_MOM_RATIO: f64 = -0.684_979_349_999_999_987;
1510
1511/// neutron-proton mass difference
1512/// Unit: kg
1513/// Uncertainty: 0.00000067e-30
1514pub const NEUTRON_PROTON_MASS_DIFFERENCE_SI: f64 = 2.305_574_610_000_000_14e-30;
1515/// neutron-proton mass difference (CGS)
1516pub const NEUTRON_PROTON_MASS_DIFFERENCE_CGS: f64 = 2.305_574_610_000_000_09e-27;
1517pub const NEUTRON_PROTON_MASS_DIFFERENCE: f64 = NEUTRON_PROTON_MASS_DIFFERENCE_SI;
1518
1519/// neutron-proton mass difference energy equivalent
1520/// Unit: J
1521/// Uncertainty: 0.00000060e-13
1522pub const NEUTRON_PROTON_MASS_DIFFERENCE_ENERGY_EQUIVALENT_SI: f64 = 2.072_147_119_999_999_92e-13;
1523/// neutron-proton mass difference energy equivalent (CGS)
1524pub const NEUTRON_PROTON_MASS_DIFFERENCE_ENERGY_EQUIVALENT_CGS: f64 = 2.072_147_119_999_999_86e-06;
1525pub const NEUTRON_PROTON_MASS_DIFFERENCE_ENERGY_EQUIVALENT: f64 = NEUTRON_PROTON_MASS_DIFFERENCE_ENERGY_EQUIVALENT_SI;
1526
1527/// neutron-proton mass difference energy equivalent in `MeV`
1528/// Unit: `MeV`
1529/// Uncertainty: 0.00000038
1530pub const NEUTRON_PROTON_MASS_DIFFERENCE_ENERGY_EQUIVALENT_IN_MEV: f64 = 1.293_332_509_999_999_94;
1531
1532/// neutron-proton mass difference in u
1533/// Unit: u
1534/// Uncertainty: 0.00000040e-3
1535pub const NEUTRON_PROTON_MASS_DIFFERENCE_IN_U: f64 = 0.001_388_449_479_999_999_97;
1536
1537/// neutron-proton mass ratio
1538/// Uncertainty: 0.00000000040
1539pub const NEUTRON_PROTON_MASS_RATIO: f64 = 1.001_378_419_459_999_95;
1540
1541/// neutron relative atomic mass
1542/// Uncertainty: 0.00000000040
1543pub const NEUTRON_RELATIVE_ATOMIC_MASS: f64 = 1.008_664_916_060_000_08;
1544
1545/// neutron-tau mass ratio
1546/// Uncertainty: 0.000036
1547pub const NEUTRON_TAU_MASS_RATIO: f64 = 0.528_778_999_999_999_999;
1548
1549/// neutron to shielded proton mag. mom. ratio
1550/// Uncertainty: 0.00000016
1551pub const NEUTRON_TO_SHIELDED_PROTON_MAG_MOM_RATIO: f64 = -0.684_996_939_999_999_999;
1552
1553/// Newtonian constant of gravitation
1554/// Unit: m^3 kg^-1 s^-2
1555/// Uncertainty: 0.00015e-11
1556pub const NEWTONIAN_CONSTANT_OF_GRAVITATION_SI: f64 = 6.674_299_999_999_999_38e-11;
1557/// Newtonian constant of gravitation (CGS)
1558pub const NEWTONIAN_CONSTANT_OF_GRAVITATION_CGS: f64 = 6.674_299_999_999_999_09e-08;
1559pub const NEWTONIAN_CONSTANT_OF_GRAVITATION: f64 = NEWTONIAN_CONSTANT_OF_GRAVITATION_SI;
1560
1561/// Newtonian constant of gravitation over h-bar c
1562/// Unit: (`GeV`/c^2)^-2
1563/// Uncertainty: 0.00015e-39
1564pub const NEWTONIAN_CONSTANT_OF_GRAVITATION_OVER_H_BAR_C: f64 = 6.708_830_000_000_000_55e-39;
1565
1566/// nuclear magneton
1567/// Unit: J T^-1
1568/// Uncertainty: 0.0000000016e-27
1569pub const NUCLEAR_MAGNETON_SI: f64 = 5.050_783_739_300_000_11e-27;
1570/// nuclear magneton (CGS)
1571pub const NUCLEAR_MAGNETON_CGS: f64 = 5.050_783_739_300_000_15e-24;
1572pub const NUCLEAR_MAGNETON: f64 = NUCLEAR_MAGNETON_SI;
1573
1574/// nuclear magneton in eV/T
1575/// Unit: eV T^-1
1576/// Uncertainty: 0.00000000098e-8
1577pub const NUCLEAR_MAGNETON_IN_EV_OVER_T_SI: f64 = 3.152_451_254_169_999_89e-08;
1578/// nuclear magneton in eV/T (CGS)
1579pub const NUCLEAR_MAGNETON_IN_EV_OVER_T_CGS: f64 = 3.152_451_254_169_999_9e-12;
1580pub const NUCLEAR_MAGNETON_IN_EV_OVER_T: f64 = NUCLEAR_MAGNETON_IN_EV_OVER_T_SI;
1581
1582/// nuclear magneton in inverse meter per tesla
1583/// Unit: m^-1 T^-1
1584/// Uncertainty: 0.00000000079e-2
1585pub const NUCLEAR_MAGNETON_IN_INVERSE_METER_PER_TESLA_SI: f64 = 0.025_426_234_100_899_999_1;
1586/// nuclear magneton in inverse meter per tesla (CGS)
1587pub const NUCLEAR_MAGNETON_IN_INVERSE_METER_PER_TESLA_CGS: f64 = 2.542_623_410_090_000_46e-08;
1588pub const NUCLEAR_MAGNETON_IN_INVERSE_METER_PER_TESLA: f64 = NUCLEAR_MAGNETON_IN_INVERSE_METER_PER_TESLA_SI;
1589
1590/// nuclear magneton in K/T
1591/// Unit: K T^-1
1592/// Uncertainty: 0.0000000011e-4
1593pub const NUCLEAR_MAGNETON_IN_K_OVER_T_SI: f64 = 0.000_365_826_777_059_999_981;
1594/// nuclear magneton in K/T (CGS)
1595pub const NUCLEAR_MAGNETON_IN_K_OVER_T_CGS: f64 = 3.658_267_770_599_999_98e-08;
1596pub const NUCLEAR_MAGNETON_IN_K_OVER_T: f64 = NUCLEAR_MAGNETON_IN_K_OVER_T_SI;
1597
1598/// nuclear magneton in MHz/T
1599/// Unit: MHz T^-1
1600/// Uncertainty: 0.0000000024
1601pub const NUCLEAR_MAGNETON_IN_MHZ_OVER_T_SI: f64 = 7.622_593_218_799_999_63;
1602/// nuclear magneton in MHz/T (CGS)
1603pub const NUCLEAR_MAGNETON_IN_MHZ_OVER_T_CGS: f64 = 0.000_762_259_321_880_000_024;
1604pub const NUCLEAR_MAGNETON_IN_MHZ_OVER_T: f64 = NUCLEAR_MAGNETON_IN_MHZ_OVER_T_SI;
1605
1606/// Planck constant
1607/// Unit: J Hz^-1
1608/// Uncertainty: (exact)
1609pub const PLANCK_CONSTANT_SI: f64 = 6.626_070_149_999_999_83e-34;
1610/// Planck constant (CGS)
1611pub const PLANCK_CONSTANT_CGS: f64 = 6.626_070_149_999_999_92e-27;
1612pub const PLANCK_CONSTANT: f64 = PLANCK_CONSTANT_SI;
1613
1614/// Planck constant in eV/Hz
1615/// Unit: eV Hz^-1
1616/// Uncertainty: (exact)
1617pub const PLANCK_CONSTANT_IN_EV_OVER_HZ: f64 = 4.135_667_696_000_000_34e-15;
1618
1619/// Planck length
1620/// Unit: m
1621/// Uncertainty: 0.000018e-35
1622pub const PLANCK_LENGTH_SI: f64 = 1.616_255_000_000_000_07e-35;
1623/// Planck length (CGS)
1624pub const PLANCK_LENGTH_CGS: f64 = 1.616_255e-33;
1625pub const PLANCK_LENGTH: f64 = PLANCK_LENGTH_SI;
1626
1627/// Planck mass
1628/// Unit: kg
1629/// Uncertainty: 0.000024e-8
1630pub const PLANCK_MASS_SI: f64 = 2.176_434_000_000_000_14e-08;
1631/// Planck mass (CGS)
1632pub const PLANCK_MASS_CGS: f64 = 2.176_434_000_000_000_04e-05;
1633pub const PLANCK_MASS: f64 = PLANCK_MASS_SI;
1634
1635/// Planck mass energy equivalent in `GeV`
1636/// Unit: `GeV`
1637/// Uncertainty: 0.000014e19
1638pub const PLANCK_MASS_ENERGY_EQUIVALENT_IN_GEV: f64 = 1.220_89e+19;
1639
1640/// Planck temperature
1641/// Unit: K
1642/// Uncertainty: 0.000016e32
1643pub const PLANCK_TEMPERATURE: f64 = 1.416_784_000_000_000_01e+32;
1644
1645/// Planck time
1646/// Unit: s
1647/// Uncertainty: 0.000060e-44
1648pub const PLANCK_TIME: f64 = 5.391_247_000_000_000_16e-44;
1649
1650/// proton charge to mass quotient
1651/// Unit: C kg^-1
1652/// Uncertainty: 0.0000000030e7
1653pub const PROTON_CHARGE_TO_MASS_QUOTIENT_SI: f64 = 95_788_331.430_000_007_2;
1654/// proton charge to mass quotient (CGS)
1655pub const PROTON_CHARGE_TO_MASS_QUOTIENT_CGS: f64 = 95_788.331_430_000_005_6;
1656pub const PROTON_CHARGE_TO_MASS_QUOTIENT: f64 = PROTON_CHARGE_TO_MASS_QUOTIENT_SI;
1657
1658/// proton Compton wavelength
1659/// Unit: m
1660/// Uncertainty: 0.00000000041e-15
1661pub const PROTON_COMPTON_WAVELENGTH_SI: f64 = 1.321_409_853_600_000_01e-15;
1662/// proton Compton wavelength (CGS)
1663pub const PROTON_COMPTON_WAVELENGTH_CGS: f64 = 1.321_409_853_599_999_92e-13;
1664pub const PROTON_COMPTON_WAVELENGTH: f64 = PROTON_COMPTON_WAVELENGTH_SI;
1665
1666/// proton-electron mass ratio
1667/// Uncertainty: 0.000000032
1668pub const PROTON_ELECTRON_MASS_RATIO: f64 = 1_836.152_673_426_000_09;
1669
1670/// proton g factor
1671/// Uncertainty: 0.0000000016
1672pub const PROTON_G_FACTOR: f64 = 5.585_694_689_300_000_35;
1673
1674/// proton gyromag. ratio
1675/// Unit: s^-1 T^-1
1676/// Uncertainty: 0.0000000011e8
1677pub const PROTON_GYROMAG_RATIO_SI: f64 = 267_522_187.080_000_013;
1678/// proton gyromag. ratio (CGS)
1679pub const PROTON_GYROMAG_RATIO_CGS: f64 = 26_752.218_708_000_004;
1680pub const PROTON_GYROMAG_RATIO: f64 = PROTON_GYROMAG_RATIO_SI;
1681
1682/// proton gyromag. ratio in MHz/T
1683/// Unit: MHz T^-1
1684/// Uncertainty: 0.000000018
1685pub const PROTON_GYROMAG_RATIO_IN_MHZ_OVER_T_SI: f64 = 42.577_478_460_999_998_3;
1686/// proton gyromag. ratio in MHz/T (CGS)
1687pub const PROTON_GYROMAG_RATIO_IN_MHZ_OVER_T_CGS: f64 = 0.004_257_747_846_100_000_05;
1688pub const PROTON_GYROMAG_RATIO_IN_MHZ_OVER_T: f64 = PROTON_GYROMAG_RATIO_IN_MHZ_OVER_T_SI;
1689
1690/// proton mag. mom.
1691/// Unit: J T^-1
1692/// Uncertainty: 0.00000000060e-26
1693pub const PROTON_MAG_MOM_SI: f64 = 1.410_606_795_450_000_13e-26;
1694/// proton mag. mom. (CGS)
1695pub const PROTON_MAG_MOM_CGS: f64 = 1.410_606_795_450_000_03e-23;
1696pub const PROTON_MAG_MOM: f64 = PROTON_MAG_MOM_SI;
1697
1698/// proton mag. mom. to Bohr magneton ratio
1699/// Uncertainty: 0.00000000045e-3
1700pub const PROTON_MAG_MOM_TO_BOHR_MAGNETON_RATIO: f64 = 0.001_521_032_202_299_999_96;
1701
1702/// proton mag. mom. to nuclear magneton ratio
1703/// Uncertainty: 0.00000000082
1704pub const PROTON_MAG_MOM_TO_NUCLEAR_MAGNETON_RATIO: f64 = 2.792_847_344_630_000_17;
1705
1706/// proton mag. shielding correction
1707/// Uncertainty: 0.00041e-5
1708pub const PROTON_MAG_SHIELDING_CORRECTION: f64 = 2.567_149_999_999_999_98e-05;
1709
1710/// proton mass
1711/// Unit: kg
1712/// Uncertainty: 0.00000000052e-27
1713pub const PROTON_MASS_SI: f64 = 1.672_621_925_949_999_91e-27;
1714/// proton mass (CGS)
1715pub const PROTON_MASS_CGS: f64 = 1.672_621_925_949_999_88e-24;
1716pub const PROTON_MASS: f64 = PROTON_MASS_SI;
1717
1718/// proton mass energy equivalent
1719/// Unit: J
1720/// Uncertainty: 0.00000000047e-10
1721pub const PROTON_MASS_ENERGY_EQUIVALENT_SI: f64 = 1.503_277_618_02e-10;
1722/// proton mass energy equivalent (CGS)
1723pub const PROTON_MASS_ENERGY_EQUIVALENT_CGS: f64 = 0.001_503_277_618_020_000_11;
1724pub const PROTON_MASS_ENERGY_EQUIVALENT: f64 = PROTON_MASS_ENERGY_EQUIVALENT_SI;
1725
1726/// proton mass energy equivalent in `MeV`
1727/// Unit: `MeV`
1728/// Uncertainty: 0.00000029
1729pub const PROTON_MASS_ENERGY_EQUIVALENT_IN_MEV: f64 = 938.272_089_430_000_051;
1730
1731/// proton mass in u
1732/// Unit: u
1733/// Uncertainty: 0.0000000000083
1734pub const PROTON_MASS_IN_U: f64 = 1.007_276_466_578_900_02;
1735
1736/// proton molar mass
1737/// Unit: kg mol^-1
1738/// Uncertainty: 0.00000000031e-3
1739pub const PROTON_MOLAR_MASS_SI: f64 = 0.001_007_276_467_639_999_95;
1740/// proton molar mass (CGS)
1741pub const PROTON_MOLAR_MASS_CGS: f64 = 1.007_276_467_639_999_9;
1742pub const PROTON_MOLAR_MASS: f64 = PROTON_MOLAR_MASS_SI;
1743
1744/// proton-muon mass ratio
1745/// Uncertainty: 0.00000020
1746pub const PROTON_MUON_MASS_RATIO: f64 = 8.880_243_379_999_999_58;
1747
1748/// proton-neutron mag. mom. ratio
1749/// Uncertainty: 0.00000034
1750pub const PROTON_NEUTRON_MAG_MOM_RATIO: f64 = -1.459_898_020_000_000_02;
1751
1752/// proton-neutron mass ratio
1753/// Uncertainty: 0.00000000040
1754pub const PROTON_NEUTRON_MASS_RATIO: f64 = 0.998_623_477_969_999_951;
1755
1756/// proton relative atomic mass
1757/// Uncertainty: 0.0000000000083
1758pub const PROTON_RELATIVE_ATOMIC_MASS: f64 = 1.007_276_466_578_900_02;
1759
1760/// proton rms charge radius
1761/// Unit: m
1762/// Uncertainty: 0.0064e-16
1763pub const PROTON_RMS_CHARGE_RADIUS_SI: f64 = 8.407_500_000_000_000_04e-16;
1764/// proton rms charge radius (CGS)
1765pub const PROTON_RMS_CHARGE_RADIUS_CGS: f64 = 8.407_499_999_999_999_77e-14;
1766pub const PROTON_RMS_CHARGE_RADIUS: f64 = PROTON_RMS_CHARGE_RADIUS_SI;
1767
1768/// proton-tau mass ratio
1769/// Uncertainty: 0.000036
1770pub const PROTON_TAU_MASS_RATIO: f64 = 0.528_051_000_000_000_048;
1771
1772/// quantum of circulation
1773/// Unit: m^2 s^-1
1774/// Uncertainty: 0.0000000011e-4
1775pub const QUANTUM_OF_CIRCULATION_SI: f64 = 0.000_363_694_754_670_000_012;
1776/// quantum of circulation (CGS)
1777pub const QUANTUM_OF_CIRCULATION_CGS: f64 = 3.636_947_546_700_000_09;
1778pub const QUANTUM_OF_CIRCULATION: f64 = QUANTUM_OF_CIRCULATION_SI;
1779
1780/// quantum of circulation times 2
1781/// Unit: m^2 s^-1
1782/// Uncertainty: 0.0000000023e-4
1783pub const QUANTUM_OF_CIRCULATION_TIMES_2_SI: f64 = 0.000_727_389_509_340_000_025;
1784/// quantum of circulation times 2 (CGS)
1785pub const QUANTUM_OF_CIRCULATION_TIMES_2_CGS: f64 = 7.273_895_093_400_000_18;
1786pub const QUANTUM_OF_CIRCULATION_TIMES_2: f64 = QUANTUM_OF_CIRCULATION_TIMES_2_SI;
1787
1788/// reduced Compton wavelength
1789/// Unit: m
1790/// Uncertainty: 0.0000000012e-13
1791pub const REDUCED_COMPTON_WAVELENGTH_SI: f64 = 3.861_592_674_399_999_85e-13;
1792/// reduced Compton wavelength (CGS)
1793pub const REDUCED_COMPTON_WAVELENGTH_CGS: f64 = 3.861_592_674_400_000_1e-11;
1794pub const REDUCED_COMPTON_WAVELENGTH: f64 = REDUCED_COMPTON_WAVELENGTH_SI;
1795
1796/// reduced muon Compton wavelength
1797/// Unit: m
1798/// Uncertainty: 0.000000042e-15
1799pub const REDUCED_MUON_COMPTON_WAVELENGTH_SI: f64 = 1.867_594_305_999_999_98e-15;
1800/// reduced muon Compton wavelength (CGS)
1801pub const REDUCED_MUON_COMPTON_WAVELENGTH_CGS: f64 = 1.867_594_305_999_999_99e-13;
1802pub const REDUCED_MUON_COMPTON_WAVELENGTH: f64 = REDUCED_MUON_COMPTON_WAVELENGTH_SI;
1803
1804/// reduced neutron Compton wavelength
1805/// Unit: m
1806/// Uncertainty: 0.0000000011e-16
1807pub const REDUCED_NEUTRON_COMPTON_WAVELENGTH_SI: f64 = 2.100_194_151_999_999_95e-16;
1808/// reduced neutron Compton wavelength (CGS)
1809pub const REDUCED_NEUTRON_COMPTON_WAVELENGTH_CGS: f64 = 2.100_194_151_999_999_96e-14;
1810pub const REDUCED_NEUTRON_COMPTON_WAVELENGTH: f64 = REDUCED_NEUTRON_COMPTON_WAVELENGTH_SI;
1811
1812/// reduced Planck constant
1813/// Unit: J s
1814/// Uncertainty: (exact)
1815pub const REDUCED_PLANCK_CONSTANT_SI: f64 = 1.054_571_816_999_999_99e-34;
1816/// reduced Planck constant (CGS)
1817pub const REDUCED_PLANCK_CONSTANT_CGS: f64 = 1.054_571_816_999_999_96e-27;
1818pub const REDUCED_PLANCK_CONSTANT: f64 = REDUCED_PLANCK_CONSTANT_SI;
1819
1820/// reduced Planck constant in eV s
1821/// Unit: eV s
1822/// Uncertainty: (exact)
1823pub const REDUCED_PLANCK_CONSTANT_IN_EV_S: f64 = 6.582_119_569_000_000_31e-16;
1824
1825/// reduced Planck constant times c in `MeV` fm
1826/// Unit: `MeV` fm
1827/// Uncertainty: (exact)
1828pub const REDUCED_PLANCK_CONSTANT_TIMES_C_IN_MEV_FM: f64 = 197.326_980_399_999_997;
1829
1830/// reduced proton Compton wavelength
1831/// Unit: m
1832/// Uncertainty: 0.00000000066e-16
1833pub const REDUCED_PROTON_COMPTON_WAVELENGTH_SI: f64 = 2.103_089_100_509_999_89e-16;
1834/// reduced proton Compton wavelength (CGS)
1835pub const REDUCED_PROTON_COMPTON_WAVELENGTH_CGS: f64 = 2.103_089_100_509_999_86e-14;
1836pub const REDUCED_PROTON_COMPTON_WAVELENGTH: f64 = REDUCED_PROTON_COMPTON_WAVELENGTH_SI;
1837
1838/// reduced tau Compton wavelength
1839/// Unit: m
1840/// Uncertainty: 0.000075e-16
1841pub const REDUCED_TAU_COMPTON_WAVELENGTH_SI: f64 = 1.110_538_000_000_000_06e-16;
1842/// reduced tau Compton wavelength (CGS)
1843pub const REDUCED_TAU_COMPTON_WAVELENGTH_CGS: f64 = 1.110_538_000_000_000_14e-14;
1844pub const REDUCED_TAU_COMPTON_WAVELENGTH: f64 = REDUCED_TAU_COMPTON_WAVELENGTH_SI;
1845
1846/// Rydberg constant
1847/// Unit: m^-1
1848/// Uncertainty: 0.000012
1849pub const RYDBERG_CONSTANT_SI: f64 = 10_973_731.568_157_000_5;
1850/// Rydberg constant (CGS)
1851pub const RYDBERG_CONSTANT_CGS: f64 = 109_737.315_681_570_006;
1852pub const RYDBERG_CONSTANT: f64 = RYDBERG_CONSTANT_SI;
1853
1854/// Rydberg constant times c in Hz
1855/// Unit: Hz
1856/// Uncertainty: 0.0000000000036e15
1857pub const RYDBERG_CONSTANT_TIMES_C_IN_HZ: f64 = 3_289_841_960_250_000.0;
1858
1859/// Rydberg constant times hc in eV
1860/// Unit: eV
1861/// Uncertainty: 0.000000000015
1862pub const RYDBERG_CONSTANT_TIMES_HC_IN_EV: f64 = 13.605_693_122_990_000_9;
1863
1864/// Rydberg constant times hc in J
1865/// Unit: J
1866/// Uncertainty: 0.0000000000024e-18
1867pub const RYDBERG_CONSTANT_TIMES_HC_IN_J_SI: f64 = 2.179_872_361_102_999_95e-18;
1868/// Rydberg constant times hc in J (CGS)
1869pub const RYDBERG_CONSTANT_TIMES_HC_IN_J_CGS: f64 = 2.179_872_361_102_999_94e-11;
1870pub const RYDBERG_CONSTANT_TIMES_HC_IN_J: f64 = RYDBERG_CONSTANT_TIMES_HC_IN_J_SI;
1871
1872/// Sackur-Tetrode constant (1 K, 100 kPa)
1873/// Uncertainty: 0.00000000047
1874pub const SACKUR_TETRODE_CONSTANT_1_K_100_KPA: f64 = -1.151_707_534_959_999_89;
1875
1876/// Sackur-Tetrode constant (1 K, 101.325 kPa)
1877/// Uncertainty: 0.00000000047
1878pub const SACKUR_TETRODE_CONSTANT_1_K_101_325_KPA: f64 = -1.164_870_521_489_999_92;
1879
1880/// second radiation constant
1881/// Unit: m K
1882/// Uncertainty: (exact)
1883pub const SECOND_RADIATION_CONSTANT_SI: f64 = 0.014_387_768_77;
1884/// second radiation constant (CGS)
1885pub const SECOND_RADIATION_CONSTANT_CGS: f64 = 1.438_776_877_000_000_01;
1886pub const SECOND_RADIATION_CONSTANT: f64 = SECOND_RADIATION_CONSTANT_SI;
1887
1888/// shielded helion gyromag. ratio
1889/// Unit: s^-1 T^-1
1890/// Uncertainty: 0.0000000018e8
1891pub const SHIELDED_HELION_GYROMAG_RATIO_SI: f64 = 203_789_460.780_000_001;
1892/// shielded helion gyromag. ratio (CGS)
1893pub const SHIELDED_HELION_GYROMAG_RATIO_CGS: f64 = 20_378.946_078_000_000_9;
1894pub const SHIELDED_HELION_GYROMAG_RATIO: f64 = SHIELDED_HELION_GYROMAG_RATIO_SI;
1895
1896/// shielded helion gyromag. ratio in MHz/T
1897/// Unit: MHz T^-1
1898/// Uncertainty: 0.000000028
1899pub const SHIELDED_HELION_GYROMAG_RATIO_IN_MHZ_OVER_T_SI: f64 = 32.434_100_033;
1900/// shielded helion gyromag. ratio in MHz/T (CGS)
1901pub const SHIELDED_HELION_GYROMAG_RATIO_IN_MHZ_OVER_T_CGS: f64 = 0.003_243_410_003_299_999_99;
1902pub const SHIELDED_HELION_GYROMAG_RATIO_IN_MHZ_OVER_T: f64 = SHIELDED_HELION_GYROMAG_RATIO_IN_MHZ_OVER_T_SI;
1903
1904/// shielded helion mag. mom.
1905/// Unit: J T^-1
1906/// Uncertainty: 0.00000000093e-26
1907pub const SHIELDED_HELION_MAG_MOM_SI: f64 = -1.074_553_110_350_000_05e-26;
1908/// shielded helion mag. mom. (CGS)
1909pub const SHIELDED_HELION_MAG_MOM_CGS: f64 = -1.074_553_110_350_000_06e-23;
1910pub const SHIELDED_HELION_MAG_MOM: f64 = SHIELDED_HELION_MAG_MOM_SI;
1911
1912/// shielded helion mag. mom. to Bohr magneton ratio
1913/// Uncertainty: 0.00000000094e-3
1914pub const SHIELDED_HELION_MAG_MOM_TO_BOHR_MAGNETON_RATIO: f64 = -0.001_158_671_494_569_999_98;
1915
1916/// shielded helion mag. mom. to nuclear magneton ratio
1917/// Uncertainty: 0.0000000017
1918pub const SHIELDED_HELION_MAG_MOM_TO_NUCLEAR_MAGNETON_RATIO: f64 = -2.127_497_762_399_999_99;
1919
1920/// shielded helion to proton mag. mom. ratio
1921/// Uncertainty: 0.00000000066
1922pub const SHIELDED_HELION_TO_PROTON_MAG_MOM_RATIO: f64 = -0.761_766_577_209_999_962;
1923
1924/// shielded helion to shielded proton mag. mom. ratio
1925/// Uncertainty: 0.0000000031
1926pub const SHIELDED_HELION_TO_SHIELDED_PROTON_MAG_MOM_RATIO: f64 = -0.761_786_133_400_000_01;
1927
1928/// shielded proton gyromag. ratio
1929/// Unit: s^-1 T^-1
1930/// Uncertainty: 0.000000011e8
1931pub const SHIELDED_PROTON_GYROMAG_RATIO_SI: f64 = 267_515_319.400_000_006;
1932/// shielded proton gyromag. ratio (CGS)
1933pub const SHIELDED_PROTON_GYROMAG_RATIO_CGS: f64 = 26_751.531_940_000_000_8;
1934pub const SHIELDED_PROTON_GYROMAG_RATIO: f64 = SHIELDED_PROTON_GYROMAG_RATIO_SI;
1935
1936/// shielded proton gyromag. ratio in MHz/T
1937/// Unit: MHz T^-1
1938/// Uncertainty: 0.00000017
1939pub const SHIELDED_PROTON_GYROMAG_RATIO_IN_MHZ_OVER_T_SI: f64 = 42.576_385_430_000_002;
1940/// shielded proton gyromag. ratio in MHz/T (CGS)
1941pub const SHIELDED_PROTON_GYROMAG_RATIO_IN_MHZ_OVER_T_CGS: f64 = 0.004_257_638_543_000_000_22;
1942pub const SHIELDED_PROTON_GYROMAG_RATIO_IN_MHZ_OVER_T: f64 = SHIELDED_PROTON_GYROMAG_RATIO_IN_MHZ_OVER_T_SI;
1943
1944/// shielded proton mag. mom.
1945/// Unit: J T^-1
1946/// Uncertainty: 0.0000000058e-26
1947pub const SHIELDED_PROTON_MAG_MOM_SI: f64 = 1.410_570_583_000_000_01e-26;
1948/// shielded proton mag. mom. (CGS)
1949pub const SHIELDED_PROTON_MAG_MOM_CGS: f64 = 1.410_570_583_000_000_05e-23;
1950pub const SHIELDED_PROTON_MAG_MOM: f64 = SHIELDED_PROTON_MAG_MOM_SI;
1951
1952/// shielded proton mag. mom. to Bohr magneton ratio
1953/// Uncertainty: 0.0000000062e-3
1954pub const SHIELDED_PROTON_MAG_MOM_TO_BOHR_MAGNETON_RATIO: f64 = 0.001_520_993_155_099_999_9;
1955
1956/// shielded proton mag. mom. to nuclear magneton ratio
1957/// Uncertainty: 0.000000011
1958pub const SHIELDED_PROTON_MAG_MOM_TO_NUCLEAR_MAGNETON_RATIO: f64 = 2.792_775_648_000_000_11;
1959
1960/// shielding difference of d and p in HD
1961/// Uncertainty: 0.00010e-8
1962pub const SHIELDING_DIFFERENCE_OF_D_AND_P_IN_HD: f64 = 1.987_699_999_999_999_99e-08;
1963
1964/// shielding difference of t and p in HT
1965/// Uncertainty: 0.00020e-8
1966pub const SHIELDING_DIFFERENCE_OF_T_AND_P_IN_HT: f64 = 2.394_500_000_000_000_03e-08;
1967
1968/// speed of light in vacuum
1969/// Unit: m s^-1
1970/// Uncertainty: (exact)
1971pub const SPEED_OF_LIGHT_IN_VACUUM_SI: f64 = 299_792_458.0;
1972/// speed of light in vacuum (CGS)
1973pub const SPEED_OF_LIGHT_IN_VACUUM_CGS: f64 = 29_979_245_800.0;
1974pub const SPEED_OF_LIGHT_IN_VACUUM: f64 = SPEED_OF_LIGHT_IN_VACUUM_SI;
1975
1976/// standard acceleration of gravity
1977/// Unit: m s^-2
1978/// Uncertainty: (exact)
1979pub const STANDARD_ACCELERATION_OF_GRAVITY_SI: f64 = 9.806_649_999_999_999_42;
1980/// standard acceleration of gravity (CGS)
1981pub const STANDARD_ACCELERATION_OF_GRAVITY_CGS: f64 = 980.664_999_999_999_964;
1982pub const STANDARD_ACCELERATION_OF_GRAVITY: f64 = STANDARD_ACCELERATION_OF_GRAVITY_SI;
1983
1984/// standard atmosphere
1985/// Unit: Pa
1986/// Uncertainty: (exact)
1987pub const STANDARD_ATMOSPHERE_SI: f64 = 101_325.0;
1988/// standard atmosphere (CGS)
1989pub const STANDARD_ATMOSPHERE_CGS: f64 = 1_013_250.0;
1990pub const STANDARD_ATMOSPHERE: f64 = STANDARD_ATMOSPHERE_SI;
1991
1992/// standard-state pressure
1993/// Unit: Pa
1994/// Uncertainty: (exact)
1995pub const STANDARD_STATE_PRESSURE_SI: f64 = 100_000.0;
1996/// standard-state pressure (CGS)
1997pub const STANDARD_STATE_PRESSURE_CGS: f64 = 1_000_000.0;
1998pub const STANDARD_STATE_PRESSURE: f64 = STANDARD_STATE_PRESSURE_SI;
1999
2000/// Stefan-Boltzmann constant
2001/// Unit: W m^-2 K^-4
2002/// Uncertainty: (exact)
2003pub const STEFAN_BOLTZMANN_CONSTANT_SI: f64 = 5.670_374_418_999_999_91e-08;
2004/// Stefan-Boltzmann constant (CGS)
2005pub const STEFAN_BOLTZMANN_CONSTANT_CGS: f64 = 5.670_374_418_999_999_76e-05;
2006pub const STEFAN_BOLTZMANN_CONSTANT: f64 = STEFAN_BOLTZMANN_CONSTANT_SI;
2007
2008/// tau Compton wavelength
2009/// Unit: m
2010/// Uncertainty: 0.00047e-16
2011pub const TAU_COMPTON_WAVELENGTH_SI: f64 = 6.977_710_000_000_000_14e-16;
2012/// tau Compton wavelength (CGS)
2013pub const TAU_COMPTON_WAVELENGTH_CGS: f64 = 6.977_709_999_999_999_86e-14;
2014pub const TAU_COMPTON_WAVELENGTH: f64 = TAU_COMPTON_WAVELENGTH_SI;
2015
2016/// tau-electron mass ratio
2017/// Uncertainty: 0.23
2018pub const TAU_ELECTRON_MASS_RATIO: f64 = 3_477.230_000_000_000_02;
2019
2020/// tau energy equivalent
2021/// Unit: `MeV`
2022/// Uncertainty: 0.12
2023pub const TAU_ENERGY_EQUIVALENT: f64 = 1_776.859_999_999_999_9;
2024
2025/// tau mass
2026/// Unit: kg
2027/// Uncertainty: 0.00021e-27
2028pub const TAU_MASS_SI: f64 = 3.167_539_999_999_999_91e-27;
2029/// tau mass (CGS)
2030pub const TAU_MASS_CGS: f64 = 3.167_539_999_999_999_87e-24;
2031pub const TAU_MASS: f64 = TAU_MASS_SI;
2032
2033/// tau mass energy equivalent
2034/// Unit: J
2035/// Uncertainty: 0.00019e-10
2036pub const TAU_MASS_ENERGY_EQUIVALENT_SI: f64 = 2.846_839_999_999_999_76e-10;
2037/// tau mass energy equivalent (CGS)
2038pub const TAU_MASS_ENERGY_EQUIVALENT_CGS: f64 = 0.002_846_839_999_999_999_79;
2039pub const TAU_MASS_ENERGY_EQUIVALENT: f64 = TAU_MASS_ENERGY_EQUIVALENT_SI;
2040
2041/// tau mass in u
2042/// Unit: u
2043/// Uncertainty: 0.00013
2044pub const TAU_MASS_IN_U: f64 = 1.907_540_000_000_000_01;
2045
2046/// tau molar mass
2047/// Unit: kg mol^-1
2048/// Uncertainty: 0.00013e-3
2049pub const TAU_MOLAR_MASS_SI: f64 = 0.001_907_540_000_000_000_1;
2050/// tau molar mass (CGS)
2051pub const TAU_MOLAR_MASS_CGS: f64 = 1.907_540_000_000_000_01;
2052pub const TAU_MOLAR_MASS: f64 = TAU_MOLAR_MASS_SI;
2053
2054/// tau-muon mass ratio
2055/// Uncertainty: 0.0011
2056pub const TAU_MUON_MASS_RATIO: f64 = 16.817_000_000_000_000_2;
2057
2058/// tau-neutron mass ratio
2059/// Uncertainty: 0.00013
2060pub const TAU_NEUTRON_MASS_RATIO: f64 = 1.891_150_000_000_000_11;
2061
2062/// tau-proton mass ratio
2063/// Uncertainty: 0.00013
2064pub const TAU_PROTON_MASS_RATIO: f64 = 1.893_760_000_000_000_11;
2065
2066/// Thomson cross section
2067/// Unit: m^2
2068/// Uncertainty: 0.0000000062e-29
2069pub const THOMSON_CROSS_SECTION_SI: f64 = 6.652_458_705_100_000_15e-29;
2070/// Thomson cross section (CGS)
2071pub const THOMSON_CROSS_SECTION_CGS: f64 = 6.652_458_705_100_000_03e-25;
2072pub const THOMSON_CROSS_SECTION: f64 = THOMSON_CROSS_SECTION_SI;
2073
2074/// triton-electron mass ratio
2075/// Uncertainty: 0.00000021
2076pub const TRITON_ELECTRON_MASS_RATIO: f64 = 5_496.921_535_509_999_56;
2077
2078/// triton g factor
2079/// Uncertainty: 0.000000012
2080pub const TRITON_G_FACTOR: f64 = 5.957_924_929_999_999_9;
2081
2082/// triton mag. mom.
2083/// Unit: J T^-1
2084/// Uncertainty: 0.0000000030e-26
2085pub const TRITON_MAG_MOM_SI: f64 = 1.504_609_517_799_999_9e-26;
2086/// triton mag. mom. (CGS)
2087pub const TRITON_MAG_MOM_CGS: f64 = 1.504_609_517_800_000_02e-23;
2088pub const TRITON_MAG_MOM: f64 = TRITON_MAG_MOM_SI;
2089
2090/// triton mag. mom. to Bohr magneton ratio
2091/// Uncertainty: 0.0000000032e-3
2092pub const TRITON_MAG_MOM_TO_BOHR_MAGNETON_RATIO: f64 = 0.001_622_393_664_799_999_96;
2093
2094/// triton mag. mom. to nuclear magneton ratio
2095/// Uncertainty: 0.0000000059
2096pub const TRITON_MAG_MOM_TO_NUCLEAR_MAGNETON_RATIO: f64 = 2.978_962_464_999_999_95;
2097
2098/// triton mass
2099/// Unit: kg
2100/// Uncertainty: 0.0000000016e-27
2101pub const TRITON_MASS_SI: f64 = 5.007_356_751_199_999_82e-27;
2102/// triton mass (CGS)
2103pub const TRITON_MASS_CGS: f64 = 5.007_356_751_199_999_94e-24;
2104pub const TRITON_MASS: f64 = TRITON_MASS_SI;
2105
2106/// triton mass energy equivalent
2107/// Unit: J
2108/// Uncertainty: 0.0000000014e-10
2109pub const TRITON_MASS_ENERGY_EQUIVALENT_SI: f64 = 4.500_387_811_899_999_92e-10;
2110/// triton mass energy equivalent (CGS)
2111pub const TRITON_MASS_ENERGY_EQUIVALENT_CGS: f64 = 0.004_500_387_811_900_000_15;
2112pub const TRITON_MASS_ENERGY_EQUIVALENT: f64 = TRITON_MASS_ENERGY_EQUIVALENT_SI;
2113
2114/// triton mass energy equivalent in `MeV`
2115/// Unit: `MeV`
2116/// Uncertainty: 0.00000088
2117pub const TRITON_MASS_ENERGY_EQUIVALENT_IN_MEV: f64 = 2_808.921_136_680_000_02;
2118
2119/// triton mass in u
2120/// Unit: u
2121/// Uncertainty: 0.00000000010
2122pub const TRITON_MASS_IN_U: f64 = 3.015_500_715_970_000_02;
2123
2124/// triton molar mass
2125/// Unit: kg mol^-1
2126/// Uncertainty: 0.00000000094e-3
2127pub const TRITON_MOLAR_MASS_SI: f64 = 0.003_015_500_719_129_999_86;
2128/// triton molar mass (CGS)
2129pub const TRITON_MOLAR_MASS_CGS: f64 = 3.015_500_719_129_999_84;
2130pub const TRITON_MOLAR_MASS: f64 = TRITON_MOLAR_MASS_SI;
2131
2132/// triton-proton mass ratio
2133/// Uncertainty: 0.00000000010
2134pub const TRITON_PROTON_MASS_RATIO: f64 = 2.993_717_034_029_999_89;
2135
2136/// triton relative atomic mass
2137/// Uncertainty: 0.00000000010
2138pub const TRITON_RELATIVE_ATOMIC_MASS: f64 = 3.015_500_715_970_000_02;
2139
2140/// triton to proton mag. mom. ratio
2141/// Uncertainty: 0.0000000021
2142pub const TRITON_TO_PROTON_MAG_MOM_RATIO: f64 = 1.066_639_918_899_999_98;
2143
2144/// unified atomic mass unit
2145/// Unit: kg
2146/// Uncertainty: 0.00000000052e-27
2147pub const UNIFIED_ATOMIC_MASS_UNIT_SI: f64 = 1.660_539_068_919_999_93e-27;
2148/// unified atomic mass unit (CGS)
2149pub const UNIFIED_ATOMIC_MASS_UNIT_CGS: f64 = 1.660_539_068_920_000_11e-24;
2150pub const UNIFIED_ATOMIC_MASS_UNIT: f64 = UNIFIED_ATOMIC_MASS_UNIT_SI;
2151
2152/// vacuum electric permittivity
2153/// Unit: F m^-1
2154/// Uncertainty: 0.0000000014e-12
2155pub const VACUUM_ELECTRIC_PERMITTIVITY_SI: f64 = 8.854_187_818_800_000_41e-12;
2156/// vacuum electric permittivity (CGS)
2157pub const VACUUM_ELECTRIC_PERMITTIVITY_CGS: f64 = 8.854_187_818_800_000_26e-14;
2158pub const VACUUM_ELECTRIC_PERMITTIVITY: f64 = VACUUM_ELECTRIC_PERMITTIVITY_SI;
2159
2160/// vacuum mag. permeability
2161/// Unit: N A^-2
2162/// Uncertainty: 0.00000000020e-6
2163pub const VACUUM_MAG_PERMEABILITY_SI: f64 = 1.256_637_061_270_000_05e-06;
2164/// vacuum mag. permeability (CGS)
2165pub const VACUUM_MAG_PERMEABILITY_CGS: f64 = 0.125_663_706_127_000_008;
2166pub const VACUUM_MAG_PERMEABILITY: f64 = VACUUM_MAG_PERMEABILITY_SI;
2167
2168/// von Klitzing constant
2169/// Unit: ohm
2170/// Uncertainty: (exact)
2171pub const VON_KLITZING_CONSTANT: f64 = 25_812.807_450_000_000_2;
2172
2173/// weak mixing angle
2174/// Uncertainty: 0.00023
2175pub const WEAK_MIXING_ANGLE: f64 = 0.223_049_999_999_999_998;
2176
2177/// Wien frequency displacement law constant
2178/// Unit: Hz K^-1
2179/// Uncertainty: (exact)
2180pub const WIEN_FREQUENCY_DISPLACEMENT_LAW_CONSTANT: f64 = 58_789_257_570.0;
2181
2182/// Wien wavelength displacement law constant
2183/// Unit: m K
2184/// Uncertainty: (exact)
2185pub const WIEN_WAVELENGTH_DISPLACEMENT_LAW_CONSTANT_SI: f64 = 0.002_897_771_955_000_000_03;
2186/// Wien wavelength displacement law constant (CGS)
2187pub const WIEN_WAVELENGTH_DISPLACEMENT_LAW_CONSTANT_CGS: f64 = 0.289_777_195_500_000_029;
2188pub const WIEN_WAVELENGTH_DISPLACEMENT_LAW_CONSTANT: f64 = WIEN_WAVELENGTH_DISPLACEMENT_LAW_CONSTANT_SI;
2189
2190/// W to Z mass ratio
2191/// Uncertainty: 0.00013
2192pub const W_TO_Z_MASS_RATIO: f64 = 0.881_449_999_999_999_956;
2193
2194/// Detailed constant information including value, uncertainty, and unit.
2195#[allow(clippy::unreadable_literal)]
2196pub const CONSTANTS: &[(&str, Constant)] = &[
2197    ("alpha particle-electron mass ratio", Constant { value: 7_294.299_541_710_000_09, uncertainty: 1.699_999_999_999_999_87e-07, unit: "" }),
2198    ("alpha particle mass", Constant { value: 6.644_657_344_999_999_81e-27, uncertainty: 2.099_999_999_999_999_91e-36, unit: "kg" }),
2199    ("alpha particle mass energy equivalent", Constant { value: 5.971_920_199_700_000_05e-10, uncertainty: 1.9e-19, unit: "J" }),
2200    ("alpha particle mass energy equivalent in MeV", Constant { value: 3_727.379_411_800_000_07, uncertainty: 1.199_999_999_999_999_95e-06, unit: "MeV" }),
2201    ("alpha particle mass in u", Constant { value: 4.001_506_179_128_999_64, uncertainty: 6.200_000_000_000_000_56e-11, unit: "u" }),
2202    ("alpha particle molar mass", Constant { value: 0.004_001_506_183_300_000_34, uncertainty: 1.199_999_999_999_999_94e-12, unit: "kg mol^-1" }),
2203    ("alpha particle-proton mass ratio", Constant { value: 3.972_599_690_252_000_22, uncertainty: 7.000_000_000_000_000_38e-11, unit: "" }),
2204    ("alpha particle relative atomic mass", Constant { value: 4.001_506_179_128_999_64, uncertainty: 6.200_000_000_000_000_56e-11, unit: "" }),
2205    ("alpha particle rms charge radius", Constant { value: 1.678_499_999_999_999_96e-15, uncertainty: 2.1e-18, unit: "m" }),
2206    ("Angstrom star", Constant { value: 1.000_014_949_999_999_94e-10, uncertainty: 8.999_999_999_999_999_57e-17, unit: "m" }),
2207    ("atomic mass constant", Constant { value: 1.660_539_068_919_999_93e-27, uncertainty: 5.199_999_999_999_999_59e-37, unit: "kg" }),
2208    ("atomic mass constant energy equivalent", Constant { value: 1.492_418_087_680_000_05e-10, uncertainty: 4.599_999_999_999_999_84e-20, unit: "J" }),
2209    ("atomic mass constant energy equivalent in MeV", Constant { value: 931.494_103_719_999_998, uncertainty: 2.899_999_999_999_999_76e-07, unit: "MeV" }),
2210    ("atomic mass unit-electron volt relationship", Constant { value: 931_494_103.720_000_029, uncertainty: 0.289_999_999_999_999_98, unit: "eV" }),
2211    ("atomic mass unit-hartree relationship", Constant { value: 34_231_776.921_999_998_4, uncertainty: 0.010_999_999_999_999_999_4, unit: "E_h" }),
2212    ("atomic mass unit-hertz relationship", Constant { value: 2.252_342_721_849_999_96e+23, uncertainty: 70_000_000_000_000.0, unit: "Hz" }),
2213    ("atomic mass unit-inverse meter relationship", Constant { value: 751_300_662_090_000.0, uncertainty: 230_000.0, unit: "m^-1" }),
2214    ("atomic mass unit-joule relationship", Constant { value: 1.492_418_087_680_000_05e-10, uncertainty: 4.599_999_999_999_999_84e-20, unit: "J" }),
2215    ("atomic mass unit-kelvin relationship", Constant { value: 10_809_540_206_700.0, uncertainty: 3_400.0, unit: "K" }),
2216    ("atomic mass unit-kilogram relationship", Constant { value: 1.660_539_068_919_999_93e-27, uncertainty: 5.199_999_999_999_999_59e-37, unit: "kg" }),
2217    ("atomic unit of 1st hyperpolarizability", Constant { value: 3.206_361_299_599_999_94e-53, uncertainty: 1.500_000_000_000_000_06e-62, unit: "C^3 m^3 J^-2" }),
2218    ("atomic unit of 2nd hyperpolarizability", Constant { value: 6.235_379_973_500_000_3e-65, uncertainty: 3.900_000_000_000_000_13e-74, unit: "C^4 m^4 J^-3" }),
2219    ("atomic unit of action", Constant { value: 1.054_571_816_999_999_99e-34, uncertainty: 0.0, unit: "J s" }),
2220    ("atomic unit of charge", Constant { value: 1.602_176_633_999_999_89e-19, uncertainty: 0.0, unit: "C" }),
2221    ("atomic unit of charge density", Constant { value: 1_081_202_386_770.0, uncertainty: 510.0, unit: "C m^-3" }),
2222    ("atomic unit of current", Constant { value: 0.006_623_618_237_508_200_13, uncertainty: 7.200_000_000_000_000_24e-15, unit: "A" }),
2223    ("atomic unit of electric dipole mom.", Constant { value: 8.478_353_619_800_000_69e-30, uncertainty: 1.299_999_999_999_999_99e-39, unit: "C m" }),
2224    ("atomic unit of electric field", Constant { value: 514_220_675_112.0, uncertainty: 80.0, unit: "V m^-1" }),
2225    ("atomic unit of electric field gradient", Constant { value: 9.717_362_442_400_000_11e+21, uncertainty: 3_000_000_000_000.0, unit: "V m^-2" }),
2226    ("atomic unit of electric polarizability", Constant { value: 1.648_777_272_12e-41, uncertainty: 5.099_999_999_999_999_74e-51, unit: "C^2 m^2 J^-1" }),
2227    ("atomic unit of electric potential", Constant { value: 27.211_386_245_981_000_1, uncertainty: 2.999_999_999_999_999_98e-11, unit: "V" }),
2228    ("atomic unit of electric quadrupole mom.", Constant { value: 4.486_551_518_500_000_02e-40, uncertainty: 1.399_999_999_999_999_99e-49, unit: "C m^2" }),
2229    ("atomic unit of energy", Constant { value: 4.359_744_722_205_999_89e-18, uncertainty: 4.799_999_999_999_999_7e-30, unit: "J" }),
2230    ("atomic unit of force", Constant { value: 8.238_723_503_800_000_3e-08, uncertainty: 1.300_000_000_000_000_02e-17, unit: "N" }),
2231    ("atomic unit of length", Constant { value: 5.291_772_105_439_999_77e-11, uncertainty: 8.199_999_999_999_999_88e-21, unit: "m" }),
2232    ("atomic unit of mag. dipole mom.", Constant { value: 1.854_802_013_149_999_92e-23, uncertainty: 5.800_000_000_000_000_05e-33, unit: "J T^-1" }),
2233    ("atomic unit of mag. flux density", Constant { value: 235_051.757_076_999_987, uncertainty: 7.299_999_999_999_999_9e-05, unit: "T" }),
2234    ("atomic unit of magnetizability", Constant { value: 7.891_036_579_399_999_45e-29, uncertainty: 4.900_000_000_000_000_39e-38, unit: "J T^-2" }),
2235    ("atomic unit of mass", Constant { value: 9.109_383_713_899_999_82e-31, uncertainty: 2.799_999_999_999_999_97e-40, unit: "kg" }),
2236    ("atomic unit of momentum", Constant { value: 1.992_851_915_449_999_82e-24, uncertainty: 3.099_999_999_999_999_8e-34, unit: "kg m s^-1" }),
2237    ("atomic unit of permittivity", Constant { value: 1.112_650_056_200_000_06e-10, uncertainty: 1.699_999_999_999_999_86e-20, unit: "F m^-1" }),
2238    ("atomic unit of time", Constant { value: 2.418_884_326_586_399_85e-17, uncertainty: 2.600_000_000_000_000_22e-29, unit: "s" }),
2239    ("atomic unit of velocity", Constant { value: 2_187_691.262_159_999_93, uncertainty: 0.000_340_000_000_000_000_024, unit: "m s^-1" }),
2240    ("Avogadro constant", Constant { value: 6.022_140_759_999_999_87e+23, uncertainty: 0.0, unit: "mol^-1" }),
2241    ("Bohr magneton", Constant { value: 9.274_010_065_699_999_92e-24, uncertainty: 2.900_000_000_000_000_03e-33, unit: "J T^-1" }),
2242    ("Bohr magneton in eV/T", Constant { value: 5.788_381_798_199_999_99e-05, uncertainty: 1.799_999_999_999_999_9e-14, unit: "eV T^-1" }),
2243    ("Bohr magneton in Hz/T", Constant { value: 13_996_244_917.100_000_4, uncertainty: 4.400_000_000_000_000_36, unit: "Hz T^-1" }),
2244    ("Bohr magneton in inverse meter per tesla", Constant { value: 46.686_447_719_000_000_2, uncertainty: 1.499_999_999_999_999_87e-08, unit: "m^-1 T^-1" }),
2245    ("Bohr magneton in K/T", Constant { value: 0.671_713_814_720_000_024, uncertainty: 2.099_999_999_999_999_99e-10, unit: "K T^-1" }),
2246    ("Bohr radius", Constant { value: 5.291_772_105_439_999_77e-11, uncertainty: 8.199_999_999_999_999_88e-21, unit: "m" }),
2247    ("Boltzmann constant", Constant { value: 1.380_649_000_000_000_09e-23, uncertainty: 0.0, unit: "J K^-1" }),
2248    ("Boltzmann constant in eV/K", Constant { value: 8.617_333_262_000_000_06e-05, uncertainty: 0.0, unit: "eV K^-1" }),
2249    ("Boltzmann constant in Hz/K", Constant { value: 20_836_619_120.0, uncertainty: 0.0, unit: "Hz K^-1" }),
2250    ("Boltzmann constant in inverse meter per kelvin", Constant { value: 69.503_480_039_999_999_5, uncertainty: 0.0, unit: "m^-1 K^-1" }),
2251    ("characteristic impedance of vacuum", Constant { value: 376.730_313_411_999_987, uncertainty: 5.899_999_999_999_999_89e-08, unit: "ohm" }),
2252    ("classical electron radius", Constant { value: 2.817_940_320_499_999_9e-15, uncertainty: 1.299_999_999_999_999_99e-24, unit: "m" }),
2253    ("Compton wavelength", Constant { value: 2.426_310_235_380_000_03e-12, uncertainty: 7.600_000_000_000_000_46e-22, unit: "m" }),
2254    ("conductance quantum", Constant { value: 7.748_091_729_000_000_37e-05, uncertainty: 0.0, unit: "S" }),
2255    ("conventional value of ampere-90", Constant { value: 1.000_000_088_870_000_03, uncertainty: 0.0, unit: "A" }),
2256    ("conventional value of coulomb-90", Constant { value: 1.000_000_088_870_000_03, uncertainty: 0.0, unit: "C" }),
2257    ("conventional value of farad-90", Constant { value: 0.999_999_982_199_999_971, uncertainty: 0.0, unit: "F" }),
2258    ("conventional value of henry-90", Constant { value: 1.000_000_017_789_999_92, uncertainty: 0.0, unit: "H" }),
2259    ("conventional value of Josephson constant", Constant { value: 483_597_900_000_000.0, uncertainty: 0.0, unit: "Hz V^-1" }),
2260    ("conventional value of ohm-90", Constant { value: 1.000_000_017_789_999_92, uncertainty: 0.0, unit: "ohm" }),
2261    ("conventional value of volt-90", Constant { value: 1.000_000_106_659_999_94, uncertainty: 0.0, unit: "V" }),
2262    ("conventional value of von Klitzing constant", Constant { value: 25_812.807_000_000_000_7, uncertainty: 0.0, unit: "ohm" }),
2263    ("conventional value of watt-90", Constant { value: 1.000_000_195_529_999_97, uncertainty: 0.0, unit: "W" }),
2264    ("Copper x unit", Constant { value: 1.002_076_970_000_000_01e-13, uncertainty: 2.800_000_000_000_000_27e-20, unit: "m" }),
2265    ("deuteron-electron mag. mom. ratio", Constant { value: -0.000_466_434_555_000_000_005, uncertainty: 1.199_999_999_999_999_94e-12, unit: "" }),
2266    ("deuteron-electron mass ratio", Constant { value: 3_670.482_967_654_999_81, uncertainty: 6.299_999_999_999_999_5e-08, unit: "" }),
2267    ("deuteron g factor", Constant { value: 0.857_438_233_500_000_035, uncertainty: 2.199_999_999_999_999_85e-09, unit: "" }),
2268    ("deuteron mag. mom.", Constant { value: 4.330_735_086_999_999_71e-27, uncertainty: 1.099_999_999_999_999_97e-35, unit: "J T^-1" }),
2269    ("deuteron mag. mom. to Bohr magneton ratio", Constant { value: 0.000_466_975_456_800_000_014, uncertainty: 1.199_999_999_999_999_94e-12, unit: "" }),
2270    ("deuteron mag. mom. to nuclear magneton ratio", Constant { value: 0.857_438_233_500_000_035, uncertainty: 2.199_999_999_999_999_85e-09, unit: "" }),
2271    ("deuteron mass", Constant { value: 3.343_583_776_800_000_06e-27, uncertainty: 9.999_999_999_999_999_41e-37, unit: "kg" }),
2272    ("deuteron mass energy equivalent", Constant { value: 3.005_063_234_909_999_96e-10, uncertainty: 9.400_000_000_000_000_3e-20, unit: "J" }),
2273    ("deuteron mass energy equivalent in MeV", Constant { value: 1_875.612_945_000_000_08, uncertainty: 5.799_999_999_999_999_53e-07, unit: "MeV" }),
2274    ("deuteron mass in u", Constant { value: 2.013_553_212_544_000_1, uncertainty: 1.499_999_999_999_999_99e-11, unit: "u" }),
2275    ("deuteron molar mass", Constant { value: 0.002_013_553_214_659_999_8, uncertainty: 6.300_000_000_000_000_42e-13, unit: "kg mol^-1" }),
2276    ("deuteron-neutron mag. mom. ratio", Constant { value: -0.448_206_519_999_999_997, uncertainty: 1.100_000_000_000_000_06e-07, unit: "" }),
2277    ("deuteron-proton mag. mom. ratio", Constant { value: 0.307_012_209_300_000_005, uncertainty: 7.899_999_999_999_999_6e-10, unit: "" }),
2278    ("deuteron-proton mass ratio", Constant { value: 1.999_007_501_269_900_01, uncertainty: 8.399_999_999_999_999_75e-12, unit: "" }),
2279    ("deuteron relative atomic mass", Constant { value: 2.013_553_212_544_000_1, uncertainty: 1.499_999_999_999_999_99e-11, unit: "" }),
2280    ("deuteron rms charge radius", Constant { value: 2.127_780_000_000_000_03e-15, uncertainty: 2.700_000_000_000_000_08e-19, unit: "m" }),
2281    ("electron charge to mass quotient", Constant { value: -175_882_000_838.0, uncertainty: 55.0, unit: "C kg^-1" }),
2282    ("electron-deuteron mag. mom. ratio", Constant { value: -2_143.923_492_100_000_2, uncertainty: 5.599_999_999_999_999_75e-06, unit: "" }),
2283    ("electron-deuteron mass ratio", Constant { value: 0.000_272_443_710_762_900_013, uncertainty: 4.699_999_999_999_999_85e-15, unit: "" }),
2284    ("electron g factor", Constant { value: -2.002_319_304_360_919_98, uncertainty: 3.599_999_999_999_999_81e-13, unit: "" }),
2285    ("electron gyromag. ratio", Constant { value: 176_085_962_784.0, uncertainty: 55.0, unit: "s^-1 T^-1" }),
2286    ("electron gyromag. ratio in MHz/T", Constant { value: 28_024.951_386_100_001_4, uncertainty: 8.699_999_999_999_999_71e-06, unit: "MHz T^-1" }),
2287    ("electron-helion mass ratio", Constant { value: 0.000_181_954_307_464_899_989, uncertainty: 5.300_000_000_000_000_14e-15, unit: "" }),
2288    ("electron mag. mom.", Constant { value: -9.284_764_691_700_000_03e-24, uncertainty: 2.900_000_000_000_000_03e-33, unit: "J T^-1" }),
2289    ("electron mag. mom. anomaly", Constant { value: 0.001_159_652_180_459_999_97, uncertainty: 1.799_999_999_999_999_9e-13, unit: "" }),
2290    ("electron mag. mom. to Bohr magneton ratio", Constant { value: -1.001_159_652_180_459_99, uncertainty: 1.799_999_999_999_999_9e-13, unit: "" }),
2291    ("electron mag. mom. to nuclear magneton ratio", Constant { value: -1_838.281_971_876_999_93, uncertainty: 3.200_000_000_000_000_2e-08, unit: "" }),
2292    ("electron mass", Constant { value: 9.109_383_713_899_999_82e-31, uncertainty: 2.799_999_999_999_999_97e-40, unit: "kg" }),
2293    ("electron mass energy equivalent", Constant { value: 8.187_105_788_000_000_12e-14, uncertainty: 2.599_999_999_999_999_99e-23, unit: "J" }),
2294    ("electron mass energy equivalent in MeV", Constant { value: 0.510_998_950_690_000_009, uncertainty: 1.599_999_999_999_999_9e-10, unit: "MeV" }),
2295    ("electron mass in u", Constant { value: 0.000_548_579_909_044_099_971, uncertainty: 9.700_000_000_000_000_64e-15, unit: "u" }),
2296    ("electron molar mass", Constant { value: 5.485_799_096_199_999_47e-07, uncertainty: 1.700_000_000_000_000_01e-16, unit: "kg mol^-1" }),
2297    ("electron-muon mag. mom. ratio", Constant { value: 206.766_988_099_999_992, uncertainty: 4.6e-06, unit: "" }),
2298    ("electron-muon mass ratio", Constant { value: 0.004_836_331_699_999_999_94, uncertainty: 1.099_999_999_999_999_95e-10, unit: "" }),
2299    ("electron-neutron mag. mom. ratio", Constant { value: 960.920_479_999_999_998, uncertainty: 0.000_230_000_000_000_000_007, unit: "" }),
2300    ("electron-neutron mass ratio", Constant { value: 0.000_543_867_344_160_000_048, uncertainty: 2.199_999_999_999_999_97e-13, unit: "" }),
2301    ("electron-proton mag. mom. ratio", Constant { value: -658.210_687_890_000_031, uncertainty: 1.900_000_000_000_000_07e-07, unit: "" }),
2302    ("electron-proton mass ratio", Constant { value: 0.000_544_617_021_488_900_022, uncertainty: 9.399_999_999_999_999_7e-15, unit: "" }),
2303    ("electron relative atomic mass", Constant { value: 0.000_548_579_909_044_099_971, uncertainty: 9.700_000_000_000_000_64e-15, unit: "" }),
2304    ("electron-tau mass ratio", Constant { value: 0.000_287_584_999_999_999_978, uncertainty: 1.900_000_000_000_000_14e-08, unit: "" }),
2305    ("electron to alpha particle mass ratio", Constant { value: 0.000_137_093_355_473_299_989, uncertainty: 3.199_999_999_999_999_93e-15, unit: "" }),
2306    ("electron to shielded helion mag. mom. ratio", Constant { value: 864.058_239_859_999_958, uncertainty: 6.999_999_999_999_999_68e-07, unit: "" }),
2307    ("electron to shielded proton mag. mom. ratio", Constant { value: -658.227_585_599_999_998, uncertainty: 2.699_999_999_999_999_98e-06, unit: "" }),
2308    ("electron-triton mass ratio", Constant { value: 0.000_181_920_006_232_700_004, uncertainty: 6.800_000_000_000_000_06e-15, unit: "" }),
2309    ("electron volt", Constant { value: 1.602_176_633_999_999_89e-19, uncertainty: 0.0, unit: "J" }),
2310    ("electron volt-atomic mass unit relationship", Constant { value: 1.073_544_100_829_999_91e-09, uncertainty: 3.299_999_999_999_999_77e-19, unit: "u" }),
2311    ("electron volt-hartree relationship", Constant { value: 0.036_749_322_175_664_997_4, uncertainty: 4.0e-14, unit: "E_h" }),
2312    ("electron volt-hertz relationship", Constant { value: 241_798_924_200_000.0, uncertainty: 0.0, unit: "Hz" }),
2313    ("electron volt-inverse meter relationship", Constant { value: 806_554.393_700_000_015, uncertainty: 0.0, unit: "m^-1" }),
2314    ("electron volt-joule relationship", Constant { value: 1.602_176_633_999_999_89e-19, uncertainty: 0.0, unit: "J" }),
2315    ("electron volt-kelvin relationship", Constant { value: 11_604.518_120_000_000_6, uncertainty: 0.0, unit: "K" }),
2316    ("electron volt-kilogram relationship", Constant { value: 1.782_661_920_999_999_95e-36, uncertainty: 0.0, unit: "kg" }),
2317    ("elementary charge", Constant { value: 1.602_176_633_999_999_89e-19, uncertainty: 0.0, unit: "C" }),
2318    ("elementary charge over h-bar", Constant { value: 1_519_267_447_000_000.0, uncertainty: 0.0, unit: "A J^-1" }),
2319    ("Faraday constant", Constant { value: 96_485.332_120_000_006_4, uncertainty: 0.0, unit: "C mol^-1" }),
2320    ("Fermi coupling constant", Constant { value: 1.166_378_699_999_999_95e-05, uncertainty: 6.000_000_000_000_000_28e-12, unit: "GeV^-2" }),
2321    ("fine-structure constant", Constant { value: 0.007_297_352_564_299_999_96, uncertainty: 1.099_999_999_999_999_96e-12, unit: "" }),
2322    ("first radiation constant", Constant { value: 3.741_771_852_000_000_16e-16, uncertainty: 0.0, unit: "W m^2" }),
2323    ("first radiation constant for spectral radiance", Constant { value: 1.191_042_972_000_000_12e-16, uncertainty: 0.0, unit: "W m^2 sr^-1" }),
2324    ("hartree-atomic mass unit relationship", Constant { value: 2.921_262_317_969_999_9e-08, uncertainty: 9.099_999_999_999_999_34e-18, unit: "u" }),
2325    ("hartree-electron volt relationship", Constant { value: 27.211_386_245_981_000_1, uncertainty: 2.999_999_999_999_999_98e-11, unit: "eV" }),
2326    ("Hartree energy", Constant { value: 4.359_744_722_205_999_89e-18, uncertainty: 4.799_999_999_999_999_7e-30, unit: "J" }),
2327    ("Hartree energy in eV", Constant { value: 27.211_386_245_981_000_1, uncertainty: 2.999_999_999_999_999_98e-11, unit: "eV" }),
2328    ("hartree-hertz relationship", Constant { value: 6_579_683_920_499_900.0, uncertainty: 7_200.0, unit: "Hz" }),
2329    ("hartree-inverse meter relationship", Constant { value: 21_947_463.136_314_000_9, uncertainty: 2.400_000_000_000_000_06e-05, unit: "m^-1" }),
2330    ("hartree-joule relationship", Constant { value: 4.359_744_722_205_999_89e-18, uncertainty: 4.799_999_999_999_999_7e-30, unit: "J" }),
2331    ("hartree-kelvin relationship", Constant { value: 315_775.024_803_980_021, uncertainty: 3.399_999_999_999_999_74e-07, unit: "K" }),
2332    ("hartree-kilogram relationship", Constant { value: 4.850_870_209_541_900_36e-35, uncertainty: 5.299_999_999_999_999_99e-47, unit: "kg" }),
2333    ("helion-electron mass ratio", Constant { value: 5_495.885_279_840_000_29, uncertainty: 1.600_000_000_000_000_03e-07, unit: "" }),
2334    ("helion g factor", Constant { value: -4.255_250_699_500_000_34, uncertainty: 3.399_999_999_999_999_84e-09, unit: "" }),
2335    ("helion mag. mom.", Constant { value: -1.074_617_551_979_999_98e-26, uncertainty: 9.299_999_999_999_999_55e-36, unit: "J T^-1" }),
2336    ("helion mag. mom. to Bohr magneton ratio", Constant { value: -0.001_158_740_980_830_000_02, uncertainty: 9.400_000_000_000_000_34e-13, unit: "" }),
2337    ("helion mag. mom. to nuclear magneton ratio", Constant { value: -2.127_625_349_800_000_18, uncertainty: 1.699_999_999_999_999_92e-09, unit: "" }),
2338    ("helion mass", Constant { value: 5.006_412_786_199_999_95e-27, uncertainty: 1.600_000_000_000_000_11e-36, unit: "kg" }),
2339    ("helion mass energy equivalent", Constant { value: 4.499_539_418_499_999_94e-10, uncertainty: 1.400_000_000_000_000_01e-19, unit: "J" }),
2340    ("helion mass energy equivalent in MeV", Constant { value: 2_808.391_611_120_000_11, uncertainty: 8.800_000_000_000_000_45e-07, unit: "MeV" }),
2341    ("helion mass in u", Constant { value: 3.014_932_246_932_000_13, uncertainty: 7.400_000_000_000_000_3e-11, unit: "u" }),
2342    ("helion molar mass", Constant { value: 0.003_014_932_250_099_999_85, uncertainty: 9.400_000_000_000_000_34e-13, unit: "kg mol^-1" }),
2343    ("helion-proton mass ratio", Constant { value: 2.993_152_671_552_000_04, uncertainty: 7.000_000_000_000_000_38e-11, unit: "" }),
2344    ("helion relative atomic mass", Constant { value: 3.014_932_246_932_000_13, uncertainty: 7.400_000_000_000_000_3e-11, unit: "" }),
2345    ("helion shielding shift", Constant { value: 5.996_702_900_000_000_3e-05, uncertainty: 2.300_000_000_000_000_14e-11, unit: "" }),
2346    ("hertz-atomic mass unit relationship", Constant { value: 4.439_821_659_000_000_06e-24, uncertainty: 1.399_999_999_999_999_94e-33, unit: "u" }),
2347    ("hertz-electron volt relationship", Constant { value: 4.135_667_696_000_000_34e-15, uncertainty: 0.0, unit: "eV" }),
2348    ("hertz-hartree relationship", Constant { value: 1.519_829_846_057_400_02e-16, uncertainty: 1.700_000_000_000_000_03e-28, unit: "E_h" }),
2349    ("hertz-inverse meter relationship", Constant { value: 3.335_640_950_999_999_91e-09, uncertainty: 0.0, unit: "m^-1" }),
2350    ("hertz-joule relationship", Constant { value: 6.626_070_149_999_999_83e-34, uncertainty: 0.0, unit: "J" }),
2351    ("hertz-kelvin relationship", Constant { value: 4.799_243_072_999_999_71e-11, uncertainty: 0.0, unit: "K" }),
2352    ("hertz-kilogram relationship", Constant { value: 7.372_497_322_999_999_41e-51, uncertainty: 0.0, unit: "kg" }),
2353    ("hyperfine transition frequency of Cs-133", Constant { value: 9_192_631_770.0, uncertainty: 0.0, unit: "Hz" }),
2354    ("inverse fine-structure constant", Constant { value: 137.035_999_177_000_008, uncertainty: 2.099_999_999_999_999_94e-08, unit: "" }),
2355    ("inverse meter-atomic mass unit relationship", Constant { value: 1.331_025_048_24e-15, uncertainty: 4.099_999_999_999_999_87e-25, unit: "u" }),
2356    ("inverse meter-electron volt relationship", Constant { value: 1.239_841_984_000_000_01e-06, uncertainty: 0.0, unit: "eV" }),
2357    ("inverse meter-hartree relationship", Constant { value: 4.556_335_252_913_200_15e-08, uncertainty: 4.999_999_999_999_999_88e-20, unit: "E_h" }),
2358    ("inverse meter-hertz relationship", Constant { value: 299_792_458.0, uncertainty: 0.0, unit: "Hz" }),
2359    ("inverse meter-joule relationship", Constant { value: 1.986_445_856_999_999_92e-25, uncertainty: 0.0, unit: "J" }),
2360    ("inverse meter-kelvin relationship", Constant { value: 0.014_387_768_77, uncertainty: 0.0, unit: "K" }),
2361    ("inverse meter-kilogram relationship", Constant { value: 2.210_219_094_000_000_11e-42, uncertainty: 0.0, unit: "kg" }),
2362    ("inverse of conductance quantum", Constant { value: 12_906.403_720_000_000_2, uncertainty: 0.0, unit: "ohm" }),
2363    ("Josephson constant", Constant { value: 483_597_848_400_000.0, uncertainty: 0.0, unit: "Hz V^-1" }),
2364    ("joule-atomic mass unit relationship", Constant { value: 6_700_535_247.100_000_38, uncertainty: 2.100_000_000_000_000_09, unit: "u" }),
2365    ("joule-electron volt relationship", Constant { value: 6.241_509_074e+18, uncertainty: 0.0, unit: "eV" }),
2366    ("joule-hartree relationship", Constant { value: 229_371_227_839_689_984.0, uncertainty: 250_000.0, unit: "E_h" }),
2367    ("joule-hertz relationship", Constant { value: 1.509_190_178_999_999_89e+33, uncertainty: 0.0, unit: "Hz" }),
2368    ("joule-inverse meter relationship", Constant { value: 5.034_116_566_999_999_95e+24, uncertainty: 0.0, unit: "m^-1" }),
2369    ("joule-kelvin relationship", Constant { value: 7.242_970_516_000_000_18e+22, uncertainty: 0.0, unit: "K" }),
2370    ("joule-kilogram relationship", Constant { value: 1.112_650_055_999_999_99e-17, uncertainty: 0.0, unit: "kg" }),
2371    ("kelvin-atomic mass unit relationship", Constant { value: 9.251_087_288_400_000_04e-14, uncertainty: 2.900_000_000_000_000_16e-23, unit: "u" }),
2372    ("kelvin-electron volt relationship", Constant { value: 8.617_333_262_000_000_06e-05, uncertainty: 0.0, unit: "eV" }),
2373    ("kelvin-hartree relationship", Constant { value: 3.166_811_563_456_400_01e-06, uncertainty: 3.499_999_999_999_999_87e-18, unit: "E_h" }),
2374    ("kelvin-hertz relationship", Constant { value: 20_836_619_120.0, uncertainty: 0.0, unit: "Hz" }),
2375    ("kelvin-inverse meter relationship", Constant { value: 69.503_480_039_999_999_5, uncertainty: 0.0, unit: "m^-1" }),
2376    ("kelvin-joule relationship", Constant { value: 1.380_649_000_000_000_09e-23, uncertainty: 0.0, unit: "J" }),
2377    ("kelvin-kilogram relationship", Constant { value: 1.536_179_187_000_000_09e-40, uncertainty: 0.0, unit: "kg" }),
2378    ("kilogram-atomic mass unit relationship", Constant { value: 6.022_140_753_699_999_96e+26, uncertainty: 190_000_000_000_000_000.0, unit: "u" }),
2379    ("kilogram-electron volt relationship", Constant { value: 5.609_588_602_999_999_76e+35, uncertainty: 0.0, unit: "eV" }),
2380    ("kilogram-hartree relationship", Constant { value: 2.061_485_788_741_500_06e+34, uncertainty: 2.2e+22, unit: "E_h" }),
2381    ("kilogram-hertz relationship", Constant { value: 1.356_392_488_999_999_99e+50, uncertainty: 0.0, unit: "Hz" }),
2382    ("kilogram-inverse meter relationship", Constant { value: 4.524_438_334_999_999_82e+41, uncertainty: 0.0, unit: "m^-1" }),
2383    ("kilogram-joule relationship", Constant { value: 89_875_517_870_000_000.0, uncertainty: 0.0, unit: "J" }),
2384    ("kilogram-kelvin relationship", Constant { value: 6.509_657_260_000_000_32e+39, uncertainty: 0.0, unit: "K" }),
2385    ("lattice parameter of silicon", Constant { value: 5.431_020_511_000_000_28e-10, uncertainty: 8.900_000_000_000_000_41e-18, unit: "m" }),
2386    ("lattice spacing of ideal Si (220)", Constant { value: 1.920_155_715_999_999_89e-10, uncertainty: 3.199_999_999_999_999_92e-18, unit: "m" }),
2387    ("Loschmidt constant (273.15 K, 100 kPa)", Constant { value: 2.651_645_803_999_999_87e+25, uncertainty: 0.0, unit: "m^-3" }),
2388    ("Loschmidt constant (273.15 K, 101.325 kPa)", Constant { value: 2.686_780_111_000_000_06e+25, uncertainty: 0.0, unit: "m^-3" }),
2389    ("luminous efficacy", Constant { value: 683.0, uncertainty: 0.0, unit: "lm W^-1" }),
2390    ("mag. flux quantum", Constant { value: 2.067_833_848_000_000_17e-15, uncertainty: 0.0, unit: "Wb" }),
2391    ("molar gas constant", Constant { value: 8.314_462_618_000_000_3, uncertainty: 0.0, unit: "J mol^-1 K^-1" }),
2392    ("molar mass constant", Constant { value: 0.001_000_000_001_049_999_95, uncertainty: 3.099_999_999_999_999_92e-13, unit: "kg mol^-1" }),
2393    ("molar mass of carbon-12", Constant { value: 0.012_000_000_012_599_999_4, uncertainty: 3.699_999_999_999_999_99e-12, unit: "kg mol^-1" }),
2394    ("molar Planck constant", Constant { value: 3.990_312_712_000_000_01e-10, uncertainty: 0.0, unit: "J Hz^-1 mol^-1" }),
2395    ("molar volume of ideal gas (273.15 K, 100 kPa)", Constant { value: 0.022_710_954_639_999_999_4, uncertainty: 0.0, unit: "m^3 mol^-1" }),
2396    ("molar volume of ideal gas (273.15 K, 101.325 kPa)", Constant { value: 0.022_413_969_539_999_998_4, uncertainty: 0.0, unit: "m^3 mol^-1" }),
2397    ("molar volume of silicon", Constant { value: 1.205_883_198_999_999_99e-05, uncertainty: 5.999_999_999_999_999_68e-13, unit: "m^3 mol^-1" }),
2398    ("Molybdenum x unit", Constant { value: 1.002_099_520_000_000_05e-13, uncertainty: 5.300_000_000_000_000_21e-20, unit: "m" }),
2399    ("muon Compton wavelength", Constant { value: 1.173_444_109_999_999_96e-14, uncertainty: 2.599_999_999_999_999_99e-22, unit: "m" }),
2400    ("muon-electron mass ratio", Constant { value: 206.768_282_699_999_986, uncertainty: 4.6e-06, unit: "" }),
2401    ("muon g factor", Constant { value: -2.002_331_841_230_000_19, uncertainty: 8.199_999_999_999_999_6e-10, unit: "" }),
2402    ("muon mag. mom.", Constant { value: -4.490_448_299_999_999_82e-26, uncertainty: 1.000_000_000_000_000_06e-33, unit: "J T^-1" }),
2403    ("muon mag. mom. anomaly", Constant { value: 0.001_165_920_620_000_000_1, uncertainty: 4.099_999_999_999_999_8e-10, unit: "" }),
2404    ("muon mag. mom. to Bohr magneton ratio", Constant { value: -0.004_841_970_479_999_999_94, uncertainty: 1.099_999_999_999_999_95e-10, unit: "" }),
2405    ("muon mag. mom. to nuclear magneton ratio", Constant { value: -8.890_597_039_999_999_4, uncertainty: 1.999_999_999_999_999_91e-07, unit: "" }),
2406    ("muon mass", Constant { value: 1.883_531_627_000_000_11e-28, uncertainty: 4.199_999_999_999_999_82e-36, unit: "kg" }),
2407    ("muon mass energy equivalent", Constant { value: 1.692_833_803_999_999_89e-11, uncertainty: 3.8e-19, unit: "J" }),
2408    ("muon mass energy equivalent in MeV", Constant { value: 105.658_375_500_000_005, uncertainty: 2.3e-06, unit: "MeV" }),
2409    ("muon mass in u", Constant { value: 0.113_428_925_700_000_002, uncertainty: 2.500_000_000_000_000_05e-09, unit: "u" }),
2410    ("muon molar mass", Constant { value: 0.000_113_428_925_800_000_002, uncertainty: 2.499_999_999_999_999_85e-12, unit: "kg mol^-1" }),
2411    ("muon-neutron mass ratio", Constant { value: 0.112_454_516_800_000_001, uncertainty: 2.500_000_000_000_000_05e-09, unit: "" }),
2412    ("muon-proton mag. mom. ratio", Constant { value: -3.183_345_146_000_000_18, uncertainty: 7.100_000_000_000_000_05e-08, unit: "" }),
2413    ("muon-proton mass ratio", Constant { value: 0.112_609_526_200_000_004, uncertainty: 2.500_000_000_000_000_05e-09, unit: "" }),
2414    ("muon-tau mass ratio", Constant { value: 0.059_463_500_000_000_002_5, uncertainty: 3.999_999_999_999_999_82e-06, unit: "" }),
2415    ("natural unit of action", Constant { value: 1.054_571_816_999_999_99e-34, uncertainty: 0.0, unit: "J s" }),
2416    ("natural unit of action in eV s", Constant { value: 6.582_119_569_000_000_31e-16, uncertainty: 0.0, unit: "eV s" }),
2417    ("natural unit of energy", Constant { value: 8.187_105_788_000_000_12e-14, uncertainty: 2.599_999_999_999_999_99e-23, unit: "J" }),
2418    ("natural unit of energy in MeV", Constant { value: 0.510_998_950_690_000_009, uncertainty: 1.599_999_999_999_999_9e-10, unit: "MeV" }),
2419    ("natural unit of length", Constant { value: 3.861_592_674_399_999_85e-13, uncertainty: 1.200_000_000_000_000_01e-22, unit: "m" }),
2420    ("natural unit of mass", Constant { value: 9.109_383_713_899_999_82e-31, uncertainty: 2.799_999_999_999_999_97e-40, unit: "kg" }),
2421    ("natural unit of momentum", Constant { value: 2.730_924_534_459_999_83e-22, uncertainty: 8.500_000_000_000_000_27e-32, unit: "kg m s^-1" }),
2422    ("natural unit of momentum in MeV/c", Constant { value: 0.510_998_950_690_000_009, uncertainty: 1.599_999_999_999_999_9e-10, unit: "MeV/c" }),
2423    ("natural unit of time", Constant { value: 1.288_088_666_440_000_02e-21, uncertainty: 4.000_000_000_000_000_33e-31, unit: "s" }),
2424    ("natural unit of velocity", Constant { value: 299_792_458.0, uncertainty: 0.0, unit: "m s^-1" }),
2425    ("neutron Compton wavelength", Constant { value: 1.319_590_903_820_000_01e-15, uncertainty: 6.700_000_000_000_000_32e-25, unit: "m" }),
2426    ("neutron-electron mag. mom. ratio", Constant { value: 0.001_040_668_839_999_999_91, uncertainty: 2.399_999_999_999_999_98e-10, unit: "" }),
2427    ("neutron-electron mass ratio", Constant { value: 1_838.683_661_999_999_91, uncertainty: 7.400_000_000_000_000_09e-07, unit: "" }),
2428    ("neutron g factor", Constant { value: -3.826_085_519_999_999_91, uncertainty: 8.999_999_999_999_999_59e-07, unit: "" }),
2429    ("neutron gyromag. ratio", Constant { value: 183_247_174.0, uncertainty: 43.0, unit: "s^-1 T^-1" }),
2430    ("neutron gyromag. ratio in MHz/T", Constant { value: 29.164_693_499_999_998_5, uncertainty: 6.900_000_000_000_000_01e-06, unit: "MHz T^-1" }),
2431    ("neutron mag. mom.", Constant { value: -9.662_365_3e-27, uncertainty: 2.299_999_999_999_999_86e-33, unit: "J T^-1" }),
2432    ("neutron mag. mom. to Bohr magneton ratio", Constant { value: -0.001_041_875_650_000_000_05, uncertainty: 2.500_000_000_000_000_16e-10, unit: "" }),
2433    ("neutron mag. mom. to nuclear magneton ratio", Constant { value: -1.913_042_759_999_999_95, uncertainty: 4.499_999_999_999_999_8e-07, unit: "" }),
2434    ("neutron mass", Constant { value: 1.674_927_500_560_000_11e-27, uncertainty: 8.500_000_000_000_000_67e-37, unit: "kg" }),
2435    ("neutron mass energy equivalent", Constant { value: 1.505_349_765_140_000_02e-10, uncertainty: 7.599_999_999_999_999_52e-20, unit: "J" }),
2436    ("neutron mass energy equivalent in MeV", Constant { value: 939.565_421_939_999_965, uncertainty: 4.799_999_999_999_999_57e-07, unit: "MeV" }),
2437    ("neutron mass in u", Constant { value: 1.008_664_916_060_000_08, uncertainty: 4.000_000_000_000_000_15e-10, unit: "u" }),
2438    ("neutron molar mass", Constant { value: 0.001_008_664_917_12, uncertainty: 5.100_000_000_000_000_48e-13, unit: "kg mol^-1" }),
2439    ("neutron-muon mass ratio", Constant { value: 8.892_484_079_999_999_12, uncertainty: 1.999_999_999_999_999_91e-07, unit: "" }),
2440    ("neutron-proton mag. mom. ratio", Constant { value: -0.684_979_349_999_999_987, uncertainty: 1.600_000_000_000_000_03e-07, unit: "" }),
2441    ("neutron-proton mass difference", Constant { value: 2.305_574_610_000_000_14e-30, uncertainty: 6.700_000_000_000_000_01e-37, unit: "kg" }),
2442    ("neutron-proton mass difference energy equivalent", Constant { value: 2.072_147_119_999_999_92e-13, uncertainty: 6.000_000_000_000_000_57e-20, unit: "J" }),
2443    ("neutron-proton mass difference energy equivalent in MeV", Constant { value: 1.293_332_509_999_999_94, uncertainty: 3.800_000_000_000_000_15e-07, unit: "MeV" }),
2444    ("neutron-proton mass difference in u", Constant { value: 0.001_388_449_479_999_999_97, uncertainty: 4.000_000_000_000_000_15e-10, unit: "u" }),
2445    ("neutron-proton mass ratio", Constant { value: 1.001_378_419_459_999_95, uncertainty: 4.000_000_000_000_000_15e-10, unit: "" }),
2446    ("neutron relative atomic mass", Constant { value: 1.008_664_916_060_000_08, uncertainty: 4.000_000_000_000_000_15e-10, unit: "" }),
2447    ("neutron-tau mass ratio", Constant { value: 0.528_778_999_999_999_999, uncertainty: 3.600_000_000_000_000_09e-05, unit: "" }),
2448    ("neutron to shielded proton mag. mom. ratio", Constant { value: -0.684_996_939_999_999_999, uncertainty: 1.600_000_000_000_000_03e-07, unit: "" }),
2449    ("Newtonian constant of gravitation", Constant { value: 6.674_299_999_999_999_38e-11, uncertainty: 1.499_999_999_999_999_92e-15, unit: "m^3 kg^-1 s^-2" }),
2450    ("Newtonian constant of gravitation over h-bar c", Constant { value: 6.708_830_000_000_000_55e-39, uncertainty: 1.500_000_000_000_000_02e-43, unit: "(GeV/c^2)^-2" }),
2451    ("nuclear magneton", Constant { value: 5.050_783_739_300_000_11e-27, uncertainty: 1.600_000_000_000_000_11e-36, unit: "J T^-1" }),
2452    ("nuclear magneton in eV/T", Constant { value: 3.152_451_254_169_999_89e-08, uncertainty: 9.800_000_000_000_000_24e-18, unit: "eV T^-1" }),
2453    ("nuclear magneton in inverse meter per tesla", Constant { value: 0.025_426_234_100_899_999_1, uncertainty: 7.899_999_999_999_999_86e-12, unit: "m^-1 T^-1" }),
2454    ("nuclear magneton in K/T", Constant { value: 0.000_365_826_777_059_999_981, uncertainty: 1.099_999_999_999_999_98e-13, unit: "K T^-1" }),
2455    ("nuclear magneton in MHz/T", Constant { value: 7.622_593_218_799_999_63, uncertainty: 2.399_999_999_999_999_98e-09, unit: "MHz T^-1" }),
2456    ("Planck constant", Constant { value: 6.626_070_149_999_999_83e-34, uncertainty: 0.0, unit: "J Hz^-1" }),
2457    ("Planck constant in eV/Hz", Constant { value: 4.135_667_696_000_000_34e-15, uncertainty: 0.0, unit: "eV Hz^-1" }),
2458    ("Planck length", Constant { value: 1.616_255_000_000_000_07e-35, uncertainty: 1.800_000_000_000_000_04e-40, unit: "m" }),
2459    ("Planck mass", Constant { value: 2.176_434_000_000_000_14e-08, uncertainty: 2.399_999_999_999_999_87e-13, unit: "kg" }),
2460    ("Planck mass energy equivalent in GeV", Constant { value: 1.220_89e+19, uncertainty: 140_000_000_000_000.0, unit: "GeV" }),
2461    ("Planck temperature", Constant { value: 1.416_784_000_000_000_01e+32, uncertainty: 1.600_000_000_000_000_08e+27, unit: "K" }),
2462    ("Planck time", Constant { value: 5.391_247_000_000_000_16e-44, uncertainty: 6.0e-49, unit: "s" }),
2463    ("proton charge to mass quotient", Constant { value: 95_788_331.430_000_007_2, uncertainty: 0.029_999_999_999_999_998_9, unit: "C kg^-1" }),
2464    ("proton Compton wavelength", Constant { value: 1.321_409_853_600_000_01e-15, uncertainty: 4.099_999_999_999_999_87e-25, unit: "m" }),
2465    ("proton-electron mass ratio", Constant { value: 1_836.152_673_426_000_09, uncertainty: 3.200_000_000_000_000_2e-08, unit: "" }),
2466    ("proton g factor", Constant { value: 5.585_694_689_300_000_35, uncertainty: 1.600_000_000_000_000_06e-09, unit: "" }),
2467    ("proton gyromag. ratio", Constant { value: 267_522_187.080_000_013, uncertainty: 0.110_000_000_000_000_001, unit: "s^-1 T^-1" }),
2468    ("proton gyromag. ratio in MHz/T", Constant { value: 42.577_478_460_999_998_3, uncertainty: 1.799_999_999_999_999_91e-08, unit: "MHz T^-1" }),
2469    ("proton mag. mom.", Constant { value: 1.410_606_795_450_000_13e-26, uncertainty: 6.000_000_000_000_000_31e-36, unit: "J T^-1" }),
2470    ("proton mag. mom. to Bohr magneton ratio", Constant { value: 0.001_521_032_202_299_999_96, uncertainty: 4.500_000_000_000_000_01e-13, unit: "" }),
2471    ("proton mag. mom. to nuclear magneton ratio", Constant { value: 2.792_847_344_630_000_17, uncertainty: 8.199_999_999_999_999_6e-10, unit: "" }),
2472    ("proton mag. shielding correction", Constant { value: 2.567_149_999_999_999_98e-05, uncertainty: 4.100_000_000_000_000_32e-09, unit: "" }),
2473    ("proton mass", Constant { value: 1.672_621_925_949_999_91e-27, uncertainty: 5.199_999_999_999_999_59e-37, unit: "kg" }),
2474    ("proton mass energy equivalent", Constant { value: 1.503_277_618_02e-10, uncertainty: 4.700_000_000_000_000_15e-20, unit: "J" }),
2475    ("proton mass energy equivalent in MeV", Constant { value: 938.272_089_430_000_051, uncertainty: 2.899_999_999_999_999_76e-07, unit: "MeV" }),
2476    ("proton mass in u", Constant { value: 1.007_276_466_578_900_02, uncertainty: 8.299_999_999_999_999_77e-12, unit: "u" }),
2477    ("proton molar mass", Constant { value: 0.001_007_276_467_639_999_95, uncertainty: 3.099_999_999_999_999_92e-13, unit: "kg mol^-1" }),
2478    ("proton-muon mass ratio", Constant { value: 8.880_243_379_999_999_58, uncertainty: 1.999_999_999_999_999_91e-07, unit: "" }),
2479    ("proton-neutron mag. mom. ratio", Constant { value: -1.459_898_020_000_000_02, uncertainty: 3.399_999_999_999_999_74e-07, unit: "" }),
2480    ("proton-neutron mass ratio", Constant { value: 0.998_623_477_969_999_951, uncertainty: 4.000_000_000_000_000_15e-10, unit: "" }),
2481    ("proton relative atomic mass", Constant { value: 1.007_276_466_578_900_02, uncertainty: 8.299_999_999_999_999_77e-12, unit: "" }),
2482    ("proton rms charge radius", Constant { value: 8.407_500_000_000_000_04e-16, uncertainty: 6.399_999_999_999_999_65e-19, unit: "m" }),
2483    ("proton-tau mass ratio", Constant { value: 0.528_051_000_000_000_048, uncertainty: 3.600_000_000_000_000_09e-05, unit: "" }),
2484    ("quantum of circulation", Constant { value: 0.000_363_694_754_670_000_012, uncertainty: 1.099_999_999_999_999_98e-13, unit: "m^2 s^-1" }),
2485    ("quantum of circulation times 2", Constant { value: 0.000_727_389_509_340_000_025, uncertainty: 2.299_999_999_999_999_79e-13, unit: "m^2 s^-1" }),
2486    ("reduced Compton wavelength", Constant { value: 3.861_592_674_399_999_85e-13, uncertainty: 1.200_000_000_000_000_01e-22, unit: "m" }),
2487    ("reduced muon Compton wavelength", Constant { value: 1.867_594_305_999_999_98e-15, uncertainty: 4.200_000_000_000_000_16e-23, unit: "m" }),
2488    ("reduced neutron Compton wavelength", Constant { value: 2.100_194_151_999_999_95e-16, uncertainty: 1.100_000_000_000_000_1e-25, unit: "m" }),
2489    ("reduced Planck constant", Constant { value: 1.054_571_816_999_999_99e-34, uncertainty: 0.0, unit: "J s" }),
2490    ("reduced Planck constant in eV s", Constant { value: 6.582_119_569_000_000_31e-16, uncertainty: 0.0, unit: "eV s" }),
2491    ("reduced Planck constant times c in MeV fm", Constant { value: 197.326_980_399_999_997, uncertainty: 0.0, unit: "MeV fm" }),
2492    ("reduced proton Compton wavelength", Constant { value: 2.103_089_100_509_999_89e-16, uncertainty: 6.599_999_999_999_999_68e-26, unit: "m" }),
2493    ("reduced tau Compton wavelength", Constant { value: 1.110_538_000_000_000_06e-16, uncertainty: 7.500_000_000_000_000_72e-21, unit: "m" }),
2494    ("Rydberg constant", Constant { value: 10_973_731.568_157_000_5, uncertainty: 1.200_000_000_000_000_03e-05, unit: "m^-1" }),
2495    ("Rydberg constant times c in Hz", Constant { value: 3_289_841_960_250_000.0, uncertainty: 3_600.0, unit: "Hz" }),
2496    ("Rydberg constant times hc in eV", Constant { value: 13.605_693_122_990_000_9, uncertainty: 1.499_999_999_999_999_99e-11, unit: "eV" }),
2497    ("Rydberg constant times hc in J", Constant { value: 2.179_872_361_102_999_95e-18, uncertainty: 2.399_999_999_999_999_85e-30, unit: "J" }),
2498    ("Sackur-Tetrode constant (1 K, 100 kPa)", Constant { value: -1.151_707_534_959_999_89, uncertainty: 4.700_000_000_000_000_31e-10, unit: "" }),
2499    ("Sackur-Tetrode constant (1 K, 101.325 kPa)", Constant { value: -1.164_870_521_489_999_92, uncertainty: 4.700_000_000_000_000_31e-10, unit: "" }),
2500    ("second radiation constant", Constant { value: 0.014_387_768_77, uncertainty: 0.0, unit: "m K" }),
2501    ("shielded helion gyromag. ratio", Constant { value: 203_789_460.780_000_001, uncertainty: 0.179_999_999_999_999_993, unit: "s^-1 T^-1" }),
2502    ("shielded helion gyromag. ratio in MHz/T", Constant { value: 32.434_100_033, uncertainty: 2.799_999_999_999_999_93e-08, unit: "MHz T^-1" }),
2503    ("shielded helion mag. mom.", Constant { value: -1.074_553_110_350_000_05e-26, uncertainty: 9.299_999_999_999_999_55e-36, unit: "J T^-1" }),
2504    ("shielded helion mag. mom. to Bohr magneton ratio", Constant { value: -0.001_158_671_494_569_999_98, uncertainty: 9.400_000_000_000_000_34e-13, unit: "" }),
2505    ("shielded helion mag. mom. to nuclear magneton ratio", Constant { value: -2.127_497_762_399_999_99, uncertainty: 1.699_999_999_999_999_92e-09, unit: "" }),
2506    ("shielded helion to proton mag. mom. ratio", Constant { value: -0.761_766_577_209_999_962, uncertainty: 6.599_999_999_999_999_96e-10, unit: "" }),
2507    ("shielded helion to shielded proton mag. mom. ratio", Constant { value: -0.761_786_133_400_000_01, uncertainty: 3.100_000_000_000_000_05e-09, unit: "" }),
2508    ("shielded proton gyromag. ratio", Constant { value: 267_515_319.400_000_006, uncertainty: 1.100_000_000_000_000_09, unit: "s^-1 T^-1" }),
2509    ("shielded proton gyromag. ratio in MHz/T", Constant { value: 42.576_385_430_000_002, uncertainty: 1.699_999_999_999_999_87e-07, unit: "MHz T^-1" }),
2510    ("shielded proton mag. mom.", Constant { value: 1.410_570_583_000_000_01e-26, uncertainty: 5.800_000_000_000_000_39e-35, unit: "J T^-1" }),
2511    ("shielded proton mag. mom. to Bohr magneton ratio", Constant { value: 0.001_520_993_155_099_999_9, uncertainty: 6.200_000_000_000_000_24e-12, unit: "" }),
2512    ("shielded proton mag. mom. to nuclear magneton ratio", Constant { value: 2.792_775_648_000_000_11, uncertainty: 1.099_999_999_999_999_92e-08, unit: "" }),
2513    ("shielding difference of d and p in HD", Constant { value: 1.987_699_999_999_999_99e-08, uncertainty: 9.999_999_999_999_999_8e-13, unit: "" }),
2514    ("shielding difference of t and p in HT", Constant { value: 2.394_500_000_000_000_03e-08, uncertainty: 1.999_999_999_999_999_96e-12, unit: "" }),
2515    ("speed of light in vacuum", Constant { value: 299_792_458.0, uncertainty: 0.0, unit: "m s^-1" }),
2516    ("standard acceleration of gravity", Constant { value: 9.806_649_999_999_999_42, uncertainty: 0.0, unit: "m s^-2" }),
2517    ("standard atmosphere", Constant { value: 101_325.0, uncertainty: 0.0, unit: "Pa" }),
2518    ("standard-state pressure", Constant { value: 100_000.0, uncertainty: 0.0, unit: "Pa" }),
2519    ("Stefan-Boltzmann constant", Constant { value: 5.670_374_418_999_999_91e-08, uncertainty: 0.0, unit: "W m^-2 K^-4" }),
2520    ("tau Compton wavelength", Constant { value: 6.977_710_000_000_000_14e-16, uncertainty: 4.700_000_000_000_000_15e-20, unit: "m" }),
2521    ("tau-electron mass ratio", Constant { value: 3_477.230_000_000_000_02, uncertainty: 0.230_000_000_000_000_01, unit: "" }),
2522    ("tau energy equivalent", Constant { value: 1_776.859_999_999_999_9, uncertainty: 0.119_999_999_999_999_996, unit: "MeV" }),
2523    ("tau mass", Constant { value: 3.167_539_999_999_999_91e-27, uncertainty: 2.099_999_999_999_999_91e-31, unit: "kg" }),
2524    ("tau mass energy equivalent", Constant { value: 2.846_839_999_999_999_76e-10, uncertainty: 1.900_000_000_000_000_11e-14, unit: "J" }),
2525    ("tau mass in u", Constant { value: 1.907_540_000_000_000_01, uncertainty: 0.000_129_999_999_999_999_989, unit: "u" }),
2526    ("tau molar mass", Constant { value: 0.001_907_540_000_000_000_1, uncertainty: 1.299_999_999_999_999_99e-07, unit: "kg mol^-1" }),
2527    ("tau-muon mass ratio", Constant { value: 16.817_000_000_000_000_2, uncertainty: 0.001_100_000_000_000_000_07, unit: "" }),
2528    ("tau-neutron mass ratio", Constant { value: 1.891_150_000_000_000_11, uncertainty: 0.000_129_999_999_999_999_989, unit: "" }),
2529    ("tau-proton mass ratio", Constant { value: 1.893_760_000_000_000_11, uncertainty: 0.000_129_999_999_999_999_989, unit: "" }),
2530    ("Thomson cross section", Constant { value: 6.652_458_705_100_000_15e-29, uncertainty: 6.199_999_999_999_999_66e-38, unit: "m^2" }),
2531    ("triton-electron mass ratio", Constant { value: 5_496.921_535_509_999_56, uncertainty: 2.100_000_000_000_000_01e-07, unit: "" }),
2532    ("triton g factor", Constant { value: 5.957_924_929_999_999_9, uncertainty: 1.199_999_999_999_999_99e-08, unit: "" }),
2533    ("triton mag. mom.", Constant { value: 1.504_609_517_799_999_9e-26, uncertainty: 2.999_999_999_999_999_89e-35, unit: "J T^-1" }),
2534    ("triton mag. mom. to Bohr magneton ratio", Constant { value: 0.001_622_393_664_799_999_96, uncertainty: 3.200_000_000_000_000_1e-12, unit: "" }),
2535    ("triton mag. mom. to nuclear magneton ratio", Constant { value: 2.978_962_464_999_999_95, uncertainty: 5.899_999_999_999_999_89e-09, unit: "" }),
2536    ("triton mass", Constant { value: 5.007_356_751_199_999_82e-27, uncertainty: 1.600_000_000_000_000_11e-36, unit: "kg" }),
2537    ("triton mass energy equivalent", Constant { value: 4.500_387_811_899_999_92e-10, uncertainty: 1.400_000_000_000_000_01e-19, unit: "J" }),
2538    ("triton mass energy equivalent in MeV", Constant { value: 2_808.921_136_680_000_02, uncertainty: 8.800_000_000_000_000_45e-07, unit: "MeV" }),
2539    ("triton mass in u", Constant { value: 3.015_500_715_970_000_02, uncertainty: 1.000_000_000_000_000_04e-10, unit: "u" }),
2540    ("triton molar mass", Constant { value: 0.003_015_500_719_129_999_86, uncertainty: 9.400_000_000_000_000_34e-13, unit: "kg mol^-1" }),
2541    ("triton-proton mass ratio", Constant { value: 2.993_717_034_029_999_89, uncertainty: 1.000_000_000_000_000_04e-10, unit: "" }),
2542    ("triton relative atomic mass", Constant { value: 3.015_500_715_970_000_02, uncertainty: 1.000_000_000_000_000_04e-10, unit: "" }),
2543    ("triton to proton mag. mom. ratio", Constant { value: 1.066_639_918_899_999_98, uncertainty: 2.100_000_000_000_000_19e-09, unit: "" }),
2544    ("unified atomic mass unit", Constant { value: 1.660_539_068_919_999_93e-27, uncertainty: 5.199_999_999_999_999_59e-37, unit: "kg" }),
2545    ("vacuum electric permittivity", Constant { value: 8.854_187_818_800_000_41e-12, uncertainty: 1.400_000_000_000_000_02e-21, unit: "F m^-1" }),
2546    ("vacuum mag. permeability", Constant { value: 1.256_637_061_270_000_05e-06, uncertainty: 1.999_999_999_999_999_96e-16, unit: "N A^-2" }),
2547    ("von Klitzing constant", Constant { value: 25_812.807_450_000_000_2, uncertainty: 0.0, unit: "ohm" }),
2548    ("weak mixing angle", Constant { value: 0.223_049_999_999_999_998, uncertainty: 0.000_230_000_000_000_000_007, unit: "" }),
2549    ("Wien frequency displacement law constant", Constant { value: 58_789_257_570.0, uncertainty: 0.0, unit: "Hz K^-1" }),
2550    ("Wien wavelength displacement law constant", Constant { value: 0.002_897_771_955_000_000_03, uncertainty: 0.0, unit: "m K" }),
2551    ("W to Z mass ratio", Constant { value: 0.881_449_999_999_999_956, uncertainty: 0.000_129_999_999_999_999_989, unit: "" }),
2552];
codata/constants.rs

codata/
constants.rs
